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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 769 · 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 10 o'clock (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  3. 3.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  5. 5.An angle measures 30°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  6. 6.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  7. 7.An angle measures 65°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  8. 8.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 110° and 130°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  12. 12.Two angles of a triangle are 75° and 40°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  14. 14.Three angles meet at a point. Two of them are 70° and 70°. What is the third angle (in degrees)?
  15. 15.An angle measures 35°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  16. 16.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  17. 17.Two angles of a triangle are 25° and 80°. What is the third angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  19. 19.An angle measures 95°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  20. 20.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 110° and 90°. What is the third angle (in degrees)?
  23. 23.An angle measures 50°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  24. 24.Three angles meet at a point. Two of them are 50° and 130°. What is the third angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 75° and 75°. What is the third angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  30. 30.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 60° and 70°. What is the third angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  35. 35.Two angles of a triangle are 65° and 95°. What is the third angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  38. 38.Two angles of a triangle are 35° and 95°. What is the third angle (in degrees)?
  39. 39.An angle measures 100°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  40. 40.Two angles of a triangle are 40° and 95°. What is the third angle (in degrees)?

Answer key

  1. 60
  2. Right
  3. 80
  4. Straight
  5. Acute
  6. 120
  7. Acute
  8. 45
  9. 30
  10. 120
  11. 150
  12. 65
  13. 90
  14. 220
  15. Acute
  16. 5
  17. 75
  18. 30
  19. Obtuse
  20. 165
  21. 30
  22. 160
  23. Acute
  24. 180
  25. 170
  26. 30
  27. 120
  28. 60
  29. 125
  30. 180
  31. 35
  32. 140
  33. 230
  34. 55
  35. 20
  36. 90
  37. 150
  38. 50
  39. Obtuse
  40. 45

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