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# Well Whaddya Know 2

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### Transcript

• 1. Well Whaddya Know? Angles
• 2. Well Whaddya Know?
• An angle is measure
• of
• rotation
Angles 1a True or False?
• 3. Well Whaddya Know?
• An angle is measured
• in…
• millimetres
• degrees
• amps
• Jules
• litres
Angles 1b Types of Angles
• 4. Well Whaddya Know?
• This angle is…
• an obtuse angle
• a reflex Angle
• an acute angle
• a straight angle
• a right angle
Angles 1c Types of Angles
• 5. Well Whaddya Know?
• This angle is…
• an obtuse angle
• a reflex Angle
• an acute angle
• a straight angle
• a right angle
Angles 1d Types of Angles
• 6. Well Whaddya Know?
• This angle is…
• an obtuse angle
• a reflex Angle
• an acute angle
• a straight angle
• a right angle
Angles 1e Types of Angles
• 7. Well Whaddya Know?
• This angle is…
• an obtuse angle
• a reflex Angle
• an acute angle
• a straight angle
• a right angle
Angles 1f Types of Angles
• 8. Well Whaddya Know?
• This angle is…
• an obtuse angle
• a reflex Angle
• an acute angle
• a straight angle
• a right angle
Angles 1g Types of Angles
• 9. Well Whaddya Know?
• is greater than 90 ° less than 180 °
• is greater than 180 ° less than 360 °
• is less than 90 °
• is exactly 180 °
• is exactly 90 °
Angles 1h Types of Angles an obtuse angle…
• 10. Well Whaddya Know?
• is greater than 90 ° less than 180 °
• is greater than 180 ° less than 360 °
• is less than 90 °
• is exactly 180 °
• is exactly 90 °
Angles 1i Types of Angles a reflex angle…
• 11. Well Whaddya Know?
• is greater than 90 ° less than 180 °
• is greater than 180 ° less than 360 °
• is less than 90 °
• is exactly 180 °
• is exactly 90 °
Angles 1j Types of Angles an acute angle…
• 12. Well Whaddya Know?
• is greater than 90 ° less than 180 °
• is greater than 180 ° less than 360 °
• is less than 90 °
• is exactly 180 °
• is exactly 90 °
Angles 1k Types of Angles a straight angle…
• 13. Well Whaddya Know?
• is greater than 90 ° less than 180 °
• is greater than 180 ° less than 360 °
• is less than 90 °
• is exactly 180 °
• is exactly 90 °
Angles 1l Types of Angles a right angle…
• 14. Well Whaddya Know? Angles 2a Naming Angles Which diagram uses the correct language for describing an angle? Choose A or B J K L J K L leg leg arm arm A B vortex vertex
• 15. Well Whaddya Know? Angles 2b Naming Angles True or False? We name an angle by using three capital letters X Y Z
• 16. Well Whaddya Know? Angles 2c Naming Angles True or False? The angle shown can be named angle XYZ or angle ZYX X Y Z
• 17. Well Whaddya Know? Angles 2d Naming Angles True or False? Two short ways of writing angle XYZ are and X Y Z XYZ XYZ
• 18. Well Whaddya Know? Angles 2e Naming Angles The name of this triangle could be… A GTM B TGM C MGT D MGT E GMT G M T
• 19. Well Whaddya Know? Angles 2f Naming Angles The name of this triangle could be… A RST B TRS C RTS D STR E SRT R S T
• 20. Well Whaddya Know? Angles 2g Naming Angles The name of this triangle could be… A PRQ B QPR C RQP D QRP E RPQ P Q R
• 21. Well Whaddya Know? Angles 2h Naming Angles A C B The angle marked could be named A ADC B BAD C BCD D ABC E DAC D
• 22. Well Whaddya Know? Angles 2i Naming Angles True or False? The letter at the vertex is always in the middle of the angle name . X Y Z
• 23. Well Whaddya Know? Angles 3a Measuring Angles To measure the size of an angle we use a… A ruler B set square C protractor D stopwatch E volt meter G M T
• 24. Well Whaddya Know? Angles 3b,c, d Measuring Angles A B C On your sheet you will find three angles to measure . Write the size of the angle in the correct box ABC = ° 3b XYZ = ° 3c UVW = ° 3d X Y Z U V W
• 25. Well Whaddya Know? Angles 4a, b, c Drawing Angles On your sheet you will find space to draw three angles . Remember to name them properly. 2marks 2marks 2marks ABC = 120 ° 4a XYZ = 72 ° 4b UVW = 90 ° 4c
• 26. Well Whaddya Know? Angles 5a Complementary and Supplementary Angles and Angles in a Revolution A 90 ° B 180 ° C 270 ° D 360 ° Complementary angles add up to…
• 27. Well Whaddya Know? Angles 5b Complementary and Supplementary Angles and Angles in a Revolution A 90 ° B 180 ° C 270 ° D 360 ° Supplementary angles add up to…
• 28. Well Whaddya Know? Angles 5c Complementary and Supplementary Angles and Angles in a Revolution A 90 ° B 180 ° C 270 ° D 360 ° Angles in a revolution add up to…
• 29. Well Whaddya Know? Angles 5d Complementary and Supplementary Angles and Angles in a Revolution What is the size of the angle marked a A 90 ° B 120 ° C 30 ° D 60 ° 30 ° a
• 30. Well Whaddya Know? Angles 5e Complementary and Supplementary Angles and Angles in a Revolution What is the size of the angle marked a A 90 ° B 150 ° C 230 ° D 60 ° 30 ° a
• 31. Well Whaddya Know? Angles 5f Complementary and Supplementary Angles and Angles in a Revolution What is the size of the angle marked a A 290 ° B 275 ° C 150 ° D 180 ° 30 ° 180 a
• 32. Well Whaddya Know? Angles 6a Vertically opposite angles The two angles that are marked are the same size A True B False
• 33. Well Whaddya Know? Angles 6b Vertically opposite angles The two angles that are marked are the same size A True B False
• 34. Well Whaddya Know? Angles 6c Vertically opposite angles If angle c is 70° what size do you think angle d is? A 45 ° B 120 ° C 70° D 90° c d
• 35. Well Whaddya Know? Angles 6d Vertically opposite angles If angle c is 70° what size do you think angle d is? A 50 ° B 110 ° C 120° D 40° c d
• 36. Well Whaddya Know? Angles 6e F angles – usually known as corresponding angles If angle c is 120° what size do you think angle d is? A 50 ° B 90 ° C 190° D 120° c d
• 37. Well Whaddya Know? Angles 6f Z angles – usually known as alternate angles If angle c is 45° what size do you think angle d is? A 55 ° B 95 ° C 45° D 125° c d
• 38. Well Whaddya Know? Angles 6g F angles – usually known as corresponding angles If angle c is 120° what size do you think angle e is? A 50 ° B 90 ° C 190° D 120° c d e
• 39. Well Whaddya Know? Angles 7a Angles in a shape Angles in a square or a rectangle add up to… A 90 ° B 180 ° C 270 ° D 360 ° W Z Y X
• 40. Well Whaddya Know? Angles 7b Angles in a shape Angles in a triangle add up to… A 90 ° B 180 ° C 270 ° D 360 ° T S R
• 41. Well Whaddya Know? Angles 7c Angles in a shape Angles in a quadrilateral add up to… A 90 ° B 180 ° C 270 ° D 360 ° G F E H
• 42. Well Whaddya Know? Angles 7d Angles in a shape How many degrees in a circle ? A 90 ° B 180 ° C 270 ° D 360 °
• 43. Well Whaddya Know? Angles Bitesize Angles from the BBC http://www.bbc.co.uk/schools/gcsebitesize/maths/shapes/anglesact.shtml Some angles stuff from those lovely people at the BBC… that’s angles… not angels! Some work for those smarty pants amongst you And why not check out the Maths Revision Blog for anything you need extra practice on, or for some notes you might have missed in class