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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 822 · 40 sums
TalentJR

The method (Know the totals): Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°. On a straight line: the two angles add up to 180°. In a triangle: the three angles add up to 180°. Around a point: 360°. Clock: each hour mark is 30° apart (360° ÷ 12).

NameDateTime takenScore ___ / 40
  1. 1.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  2. 2.An angle measures 110°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  3. 3.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  5. 5.Three angles meet at a point. Two of them are 110° and 90°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 110° and 180°. What is the third angle (in degrees)?
  8. 8.An angle measures 90°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  9. 9.Three angles meet at a point. Two of them are 110° and 150°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 55° and 75°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  14. 14.An angle measures 100°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  15. 15.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 35° and 40°. What is the third angle (in degrees)?
  17. 17.An angle measures 15°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  18. 18.Two angles of a triangle are 55° and 35°. What is the third angle (in degrees)?
  19. 19.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  21. 21.Two angles of a triangle are 85° and 80°. What is the third angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  23. 23.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  26. 26.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 80° and 90°. What is the third angle (in degrees)?
  30. 30.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  31. 31.An angle measures 80°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  32. 32.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  33. 33.Three angles meet at a point. Two of them are 100° and 110°. What is the third angle (in degrees)?
  34. 34.Two angles of a triangle are 40° and 25°. What is the third angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  36. 36.Two angles of a triangle are 40° and 90°. What is the third angle (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  39. 39.An angle measures 40°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  40. 40.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. 150
  2. Obtuse
  3. 140
  4. Straight
  5. 160
  6. 30
  7. 70
  8. Right
  9. 100
  10. 50
  11. 120
  12. 5
  13. 240
  14. Obtuse
  15. 30
  16. 105
  17. Acute
  18. 90
  19. 70
  20. 25
  21. 15
  22. 40
  23. 145
  24. 85
  25. 165
  26. 150
  27. 160
  28. 60
  29. 190
  30. 90
  31. Acute
  32. Obtuse
  33. 150
  34. 115
  35. 55
  36. 50
  37. 110
  38. 60
  39. Acute
  40. Obtuse

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