Genius Jnr - Draw, whenever possible, a rough sketch of (i) a triangle with both line and rotational symmetries. (ii) a triangle with only line symmetry and no rotational symmetry. (iii) a quadrilateral with a rotational symmetry but not a line of symmetry. (iv) a quadrilateral with line symmetry but not a rotational symmetry.

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Draw, whenever possible, a rough sketch of
(i) a triangle with both line and rotational symmetries.
(ii) a triangle with only line symmetry and no rotational symmetry.
(iii) a quadrilateral with a rotational symmetry but not a line of symmetry.
(iv) a quadrilateral with line symmetry but not a rotational symmetry.

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Given Waves According Decreasing Frequenc Use Following Information Answer Next Question Two Different Waves Ii Produced Two Strings Shown Giv Sound Waves Produced Tightened Strings Guitar Use Following Information Answer Next Question Crests Troughs Sound Waves Produced Piccolo Kind Flut Use Following Information Answer Next Question Given Figure Represents Sound Produced Bluebird Somet Use Following Information Answer Next Question Given Figure Shows Wave Total Number Crests Troughs W Use Following Information Answer Next Question Given Figure Shows Wave Wavelength Wave Determined Me Use Following Information Answer Next Question Section Wave Shown Given Figure Points N P R Respecti Use Following Information Answer Next Question Section Wave Shown Given Figure Wave Length Wavelengt Use Following Information Answer Next Question Wave Form Sound Wave Shown Given Figure Peak Points N Use Following Information Answer Next Question Section Two Sound Waves Shown Given Figure Following Loudness Sound Wave Directly Proportional Amplitude Following Sound Waves Loudest Number Crests Troughs Wave Passing Particular Point One Second Known Use Following Information Answer Next Question Position Versus Time Graph Particle Wave Shown Given Use Following Information Answer Next Question Jim Beats Two Empty Drums Sound Waves Produced Drums Following Pairs Sound Waves Represents Sounds Different Levels Loudness Use Following Information Answer Next Question Owen Strikes Two Tuning Forks Hammer Produce Melodiou Use Following Information Answer Next Question Antonio Speaks Inside School Auditorium Hears Sound S Use Following Information Answer Next Question Sound Produced Vibration Object Travels Medium Air Fo Following Phenomena Result Reflection Sound Echo Phenomenon Related Use Following Information Answer Next Question Alex Enters Garden Hears Voice Animal Easily Identifi Use Following Information Answer Next Question Given Table Lists Characteristics Four Sounds Ii Iii Use Following Information Answer Next Question Drummer Producing Sound Beating Drum Wants Increase L Use Following Information Answer Next Question Given Table Lists Characteristics Four Sounds Ii Iii Dolphins Communicate Ultrasounds Human Beings Cannot Hear Use Following Information Answer Next Question Hearing Ranges Animals Shown Given Bar Graph Frequenc Use Following Information Answer Next Question Hearing Ranges Animals Shown Given Bar Graph Given An Use Following Information Answer Next Question Approximate Hearing Ranges Species Listed Given Table Human Able Hear Sounds Vibration Use Following Information Answer Next Question Lucas Wants Compare Loudness Two Sound Producing Inst Answer Following Questions Ultrasound Scanner B Work C Write Two Uses Ultrasonic Waves Answer Following Questions Sonar B Work Stone Dropped Well Whose Water Depth 20 Much Time Splash Sou Echocardiography Bob Pendulum Makes 100 Oscillations 25 Seconds Time Period Given Pendulum Use Following Information Answer Next Question Cinema Hall Auditorium Roof Inside Walls Covered Comp Use Following Information Answer Next Question Wavelength Sound Wave Travelling Speed 900 50 Cm Time Use Following Information Answer Next Question Four Identical Bells Kept Four Different Containers M Part Ear Vibrates Helps Humans Hear Use Following Information Answer Next Question Boat Sends Ultrasound Returns Iceberg Located Certain Use Following Information Answer Next Question Ship Transmits Ultrasonic Sound Wave Reflects Seabed Nisha Wants Become Navy Person Likes Watching Programs Related Ships Equipment Used Ships Notices Sp Student Performing Experiment Verify Laws Reflection Sound Noted Four Different Readings Angle Incid Experiment Conducted Determine Velocity Pulse Propagated Long Stretched Spring Jerk Given Create Pul Experiment Four Similar Sounds Intensity Allowed Pass Separate Media Detector Placed End Medium Soun Sound Wave Frequency 400 Hz Distance Two Successive Compressions 50 Cm Long Take Sound Wave Travel Differenciate Transverse Waves Longitudenal Waves Linear Distance Consecutive Compression Rarefaction Longitudinal Wave Wavelength Velocity Sound Air V Frequency Velocity Frequency Changes 4 Sound Wave Travels Air Water Following Change Following Statement Incorrect Shown Wave Wavelength Assertion Sound Needs Material Medium Propagation Reason Sound Waves Transverse Waves Answer Given Questions Basis Understanding Following Paragraph Related Studied Concepts Two Ways Pro Ship Sends Ultrasound Returns Seabed Detected 2 Speed Ultrasound Water 1531 Ms 1 Distance Seabed Shi Hearing Process Choose Two Parts Respective Functions Correctly Choose Correct Statement Among Following Speed Sound 330 Maximum Possible Wavelength Corresponding Frequency Range 10 1000 Hz Pitch Note Determined Wave Pulse Frequency 400 Hz String Moves Distance 16 0 1 Wavelength Wave String Animal Hear Sounds Frequency Upto 60khz Speed Sound Air 344 Minimum Wavelength Sound Hear Following Used Sound Navigation Ranging Name Sound Frequency 10 Hz Isosceles Triangle Abc Ac Bc Ab2 2ac2 C 30 B 45 C 90 60 Man Goes 24 Due West 7 Due North Far Starting Point 31 B 17 C 25 26 Length Hypotenuse Isosceles Right Triangle Whose One Side 42 Cm 12 Cm B 8 Cm C 82 Cm 122 Cm Two Triangles Abc Def Abde Bcfe Cafd Fde Cab B Fde Abc C Cba Fde Bca Fde Right Triangle Abc Right Angled B P Q Points Sides Ab Ac Respectively Aq2 Cp2 2 Ac2 Pq2 B 2 Aq2 Cp2 E Point Side Ca Equilateral Triangle Abc Ca Ab2 Bc2 Ca2 2 Be2 B 3 Be2 C 4 Be2 6 Be2 Abc Right Triangle Right Angled B N Mid Points Ab Bc Respectively 4 An2 Cm2 4 Ac2 B 5 Ac2 C 54ac2 6 Abc Isosceles Triangle Point Bc Ad Bc Ab2 Ad2 Bd Dc B Ab2 Ad2 Bd2 Dc2 C Ab2 Ad2 Bd Dc Ab2 Ad2 Bd2 Dc Cylindrical Vessel Diameter Equal Height Full Water Poured Two Identical Cylindrical Vessels Diamete Use Following Information Answer Next Question One End Ruler Fixed Table End Struck Shown Given Figu Cwc Stands Central Water Commission B Central Warehousing Commission C Central Warehousing Corporati Use Following Information Answer Next Question Kevin Touches Four Objects Ii Iii Iv Makes Following Business Risk Likely Arise Due Changes Government Policy B Good Management C Employee Dishonesty Pow Following Types Business Think Sole Proprietorship Form Organisation Would Suitable Grocery Store B Social Responsibility Legal Responsibility B Broader Legal Responsibility C Narrower Legal Responsib Equity Shareholder Called Owners Company B Partners Company C Executives Company Guardian Company Business Finance Businesses Need Funds Explain Sound Coming Alarm Clock Cannot Heard Kept Inside Box Describe Role Small Business Rural India Define Intercropping Differ Mixed Cropping Distinguish Prokaryotic Enkaryotic Cells Distinguish Following Chromoplast Chloroplast B Ribosome Centrosome Importance Tissues Write Names Different Types Plant Tissues Write Differences Dicots Monocots Write Four Characters Osteichtyes Give Two Examples Write Causal Organisms Following Diseases Tuberculosis Kala Azar Malaria Measles Athlete Foot Choler Name Health Problems Subsequent Disaster Following Statements Sound Produced Human Beings Incorrect Human Body Respective Parts Responsible Producing Sound Controlling Sound Quality Part Tabla Vibrates Produce Sound Part Human Body Vibrates Produce Sounds Human Vocal Cord Controls Theof Sound Information Alternative Completes Given Statement Sound Coming Alarm Clock Cannot Heard Kept Inside Box Bob Simple Pendulum Oscillating Frequency 25 Hz Much Time Pendulum Take Make 100 Oscillations Following Musical Instruments Matched Vibrating Part Sound Waves Cannot Travel Following Actions Related Production Sound Humans Loudness Sound Determined Use Following Information Answer Next Question John Places Alarm Clock Inside Box Shown Given Figure Respective Parameters Loudness Pitch Sound Depend Bob Simple Pendulum Oscillates 60 Times 8 Calculate Time Period Pendulum Ii Write Two Methods Reduc Part Human Body Vibrates Produce Sound Respective Parameters Loudness Pitch Sound Depend Fill Blanks Tabla Sound Produced Vibration Whereas Sitar Sound Produced Vibration Mention Four Health Related Effects Noise Pollution Understand Frequency Amplitude Oscillating Body Cannot Hear Sound Produced Flapping Wings Bird Hear Sound Produced Flapping Wings Mosquito Answer Following Questions Unit Frequency Define Ii Characteristic Sound Allows One Distinguish Soun History Generally Divided Time Periods Two B Four C Three Five Lightning Usually Seen Little Thunder Heard Explain Noise Pollution Give Two Sources Noise Pollution Mention Four Health Related Effects Noise Pollution Bob Simple Pendulum Oscillates 60 Times 8 Calculate Time Period Pendulum Ii Write Two Methods Reduc Effects Noise Pollution Noise Pollution Controlled Fill Blanks Tabla Sound Produced Vibration Whereas Sitar Sound Produced Vibration Human Voice Produced Indentify Parts Produce Sound Given Instruments Guitar Ii Sitar Iii Tuning Fork Iv Larynx One Preferable House Along Busy Road House Four Lanes Away Busy Road Abc School Decided Organise Campaign Increasing Levels Noise Pollution Teacher Asked Students Make P Using Pressure Time Graphs Differentiate Following Sharp Flat Sounds Ii Soft Loud Sounds Abc School Decided Organise Campaign Increasing Levels Noise Pollution Teacher Asked Students Make P Name Organ Helps Producing Sound Draw Diagram Part Organ Vibrates Speaking Explain Role Determining Quality Voice Property Sound Determined Frequency Explain Variation Frequency Help Examples Property Sound Determined Amplitude Explain Variation Amplitude Help Examples Differentiate Sounds Produced Lion Bird Terms Amplitude Pitch Loudness Frequency One Preferable House Along Busy Road House Four Lanes Away Busy Road Lightning Usually Seen Little Thunder Heard Explain Discuss Activity Show Sound Travels Solids Explain Whales Dolphins Communicate Water Signals Used Dolphins Communicating Underwater Waves Used Ultrasound Equipment Purpose Medical Diagnosis Special Frequency Waves Sound Audible Huma Pendulum Oscillates 400 Times 40 Seconds Find Frequency Time Period Harmful Effects Listening Music High Volume Boy Dancing Song Played High Volume Sister Practising Harmonium Another Room Cases Sound Spread Surr Name Two Domestic Sources Contribute Noise Pollution Name Health Problems Directly Related Noise Pollution Sound Frequencies Falling Range Audible Human Ear Order Alert Dogs Presence Thieves Policemen Blow Whistles Frequency 25893 Hz Would Thief Able Listen Loudness Sound Change Amplitude Changes Units Frequency Loudness Radha Voice Higher Frequency Ram Voice Voice Shriller Advisable Plant Tress Around Areas Close Factories Sound Travel Vacuum Sound Produced Guitar Strings Vibrated Rate 200 Vibrations Per Second Time Period Vibration Characteristic Human Body Responsible Difference Voices Males Females Identify Vibrating Part Following Musical Instruments Flute Ii Dholak Stretched String Vibrating Part Listed Musical Instruments Ektara Flute Dholak Tabla Veena Surface Still Water Gently Touched Vibrating Tuning Fork Water Use Following Information Answer Next Question Grains Dispersed Surface Head Drum Shown Given Figure Vibrating Part Jaltarang Humans Sound Produced Vibration Quality Voice Produced Person Varies Sound Produced Humans Vibrating Part Human Throat Produces Sound Loud Sound Produced Object Cannot Heard Observer Medium Separating Two Use Following Information Answer Next Question Given Figure Shows Arrangement Four Layers Namely Oil Sound Wave Number Oscillations Per Second Determines Frequency Pendulum Bob Makes 50 Oscillations 2 Loudness Sound Determined Sound Frequency 5 Hz Feeble Sound Use Following Information Answer Next Question Bob Simple Pendulum Oscillates 50 Times 5 Seconds Tim Pitch Sound Determines Loudness Expressed Unit Called Size Vibration Sound Determines Sound Produced Object Termed Shrilled Presence Excessive Sound Surroundings Termed Part Ear Affected Excessive Noise Use Following Information Answer Next Question Televisions Music Systems Attribute Excessive Noise S Sound Produced Musical Instruments Following Preventive Measures Cannot Attributed Roadside Noise Pollution Presence Excessive Unwanted Noise Surroundings May Cause Two Traingles Def Ghk 48 H 57 Def Ghk Find Measure F Area Square 225 M2 Perimeter 15 B 60 C 225 30 Perimeter Square 16 Cm Area 4 Cm2 B 8 Cm2 C 16 Cm2 12 Cm2 Length Rectangle 8 Cm Area 48 Cm2 Perimeter Rectangle 14 Cm B 24 Cm C 12 Cm 28 Cm Area Square Square Drawn Diagonal Ratio 1 2 B 1 2 C 1 3 1 4 Length Diagonal Square Area Square D2 B 12d2 C 14d2 2d2 Ratio Areas Two Squares One Diagonal Double 2 1 B 3 1 C 3 2 4 1 Following Acts Cannot Produce Sound Human Body Respective Parts Responsible Producing Sound Controlling Sound Quality Following Statements Sound Produced Human Beings Incorrect Use Following Information Answer Next Question John Places Alarm Clock Inside Box Shown Given Figure Use Following Information Answer Next Question Rohan Beating Drum Shown Figure Wants Sound Produced Use Following Information Answer Next Question Loud Sound Higher High Pitched Sound Higher Informati Use Following Information Answer Next Question Given Figure Shows Four Buzzers Producing Sound Diffe Following Operations Help Reduction Noise Pollution Use Following Information Answer Next Question Consider Given Four Objects Produce Sound Fire Cracke Following Effects Unlikely Occur Noise Pollution Noise Pollution Name Two Sources Noise Pollution Physical Quantity Determines Shrillness Sound Unit Bob Pendulum Oscillates Frequency 30 Hz Much Time Take Complete 120 Oscillations Guitar Sound Produced Vibrations Whereas Larynx Sound Produced Vibrations Difference Larynx Man Woman Vipul Observes Fire Cracker Explode High Sky However Hears Sound Explosion Moment Later Explain Reas Dolphins Communicate Water Help Sound Sound Heard Humans Small Metallic Ball Suspended Rigid Support Help Piece Cotton Thread Tuning Fork Fixed Table Ball Re Priya Rahul Holding Specially Constructed Rod Goes Evacuated Cube Rod Constructed Switch Closed Gap Name Quantity Determines Pitch Sound Produced Humans Part Larynx Produces Sound Basis Frequency Predict Whether Sound Audible Inaudible Give One Application Inaudible Sound Soft Drink Available Two Packs Tin Rectangular Base Length 5 Cm Breadth 4 Cm Height 15 Cm Ii Plastic Pendulum Oscillates 120 Times 8 Frequency Sound Frequency Audible Humans Range Hearing Humans 10 Units Force Applied Buzzer Produces Sound Frequency 5 000 Hz Frequency Doubles Force Applied Doub Mention One Application Inaudible Sound Difference Vocal Cords Man Woman Affect Frequency Sounds Produced Man Woman Whose Sound Higher Pitch Property Sound Affected Difference Lengths Vocal Cords Man Woman Capacity Closed Cylindrical Vessel Height 1 15 4 Litres Find Area Metal Sheet Needed Make Voice Child Shriller Voice Adult Man Part Larynx Determines Shrillness Voice Sounds Produced Whistle Lion Roar One Greater Frequency Affect Pitch Sound Inner Diameter Cylindrical Wooden Pipe 24 Cm Outer Diameter 28 Cm Length Pipe 35 Cm Find Mass Pipe 1 Measure Shrillness Sound Wave Water Heating System Cylindrical Pipe Length 28 Diameter 5 Cm Find Total Radiating Surface System Juiceseller Large Cylindrical Vessel Base Radius 15 Cm Filled Height 32 Cm Orange Juice Juice Filled Commonly Observed Trees Planted Around Factories Produce Lot Sound Give Reason Effect Excessive Noise Health Person State Whether Following Statements True False Justify Answer Point P 0 2 Point Intersection Axis Per State Whether Following Statements True False Justify Answer Points 3 1 B 12 2 C 0 2 Cannot Vertices Use Following Information Answer Next Question Kevin Touches Four Objects Ii Iii Iv Makes Following High Noise Levels Injure Ear Drum Cause Deafness Following Devices Lead Production High Noise Use Following Information Answer Next Question Tom Spreads Sand Particles Drum Head Strikes Drum Ham Sound Produced Two People Talk Energy Transferred Use Following Information Answer Next Question Alex Hits Tuning Fork Wall Fork Begins Vibrate Connec Use Following Information Answer Next Question Eric Throws Stone River Stone Travels Distance 100 Aw Use Following Information Answer Next Question Cruz Standing Pond Throws Stone Pond Distance Away Wa Use Following Information Answer Next Question Ivan Shakes One End Rope Attached Wall Produces Wave Intensity Sound Waves Measured Sound Waves Cannot Travel Two Fishing Boats Mid Sea One Boats Sends Two Sound Signals Boat Time One Air Water Second Boat Rece Use Following Information Answer Next Question Justin Friend Daniel Stand Two Ends Large Empty Hall Use Following Information Answer Next Question Vs Speed Sound Solid Medium Vl Speed Sound Liquid Med Use Following Information Answer Next Question Julie Hears Ringing Bell Nearby Church Hears Bell Rin Use Following Information Answer Next Question Famous Band Beetles Used Ultrasonic Whistle One Songs Dolphins Communicate Sending High Pitched Squalls Shows Sound Travel Frequency Pendulum Bob Makes 50 Oscillations 2 Define Noise Noise Pollution Results Hypertension People Sound Causes Jarring Effect Ears Sound Intensity Measured Decibals Done Explain Construction Working Loudspeaker Bunty Strikes Table Steel Spoon Hardly Louder Sound Produced Pitch Sound Produced Bubbly Determined Among Bunty Bubbly Whose Voice Higher Pitch Frequency Vibration String Musical Instrument 50 Hz Time Period Vibration Given Sound Produced Membrane Vibrates Rate 30 Oscillations Two Seconds Reason Astronauts Outer Space Cannot Hear Give Order Rotational Symmetry Following Figures Rotated Marked Point X Following Figures Dotted Lines Represent Lines Symmetry Find Hole Following Figures Shows Paper Cuttings Punched Holes Copy Figures Plane Sheet Mark Axis Symmetry Pap Following Figures Mirror Line E Line Symmetry Given Dotted Line Complete Figure Performing Reflectio Identify Multiple Lines Symmetry Following Figures Identify Three Examples Shapes Line Symmetry Name Give Line Symmetry Isosceles Triangle Ii Circle State Number Lines Symmetry Following Figures Equilateral Triangle Ii Isosceles Triangle Iii Scalene Give Example Figure Line Symmetry Rotational Symmetry Fill Blanks English Alphabet Letter Line Symmetry Number Lines Symmetry Rotational Symmetry Order Ro Fill Blanks Figures Centre Rotation Order Rotation Angle Rotation Square Rectangle Rhombus Equilater Draw Whenever Possible Rough Sketch Triangle Line Rotational Symmetries Ii Triangle Line Symmetry Ro Line Symmetry Semi Circle Rotational Symmetry Give Example Letter English Alphabet Line Symmetry Ii Rotational Symmetry Order 2 Give Example Geometrical Figure Neither Line Symmetry Rotational Symmetry Name Two Figures Line Symmetry Rotational Symmetry Following 2 Lines Symmetry Equilateral Triangle B Rhombus C Circle None Rotation Following Point Symmetric Rectangle B Square C Parallelogram