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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 589 · 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.An angle measures 90°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  2. 2.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  4. 4.An angle measures 135°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  5. 5.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  6. 6.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  7. 7.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 95° and 40°. What is the third angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 140° and 90°. What is the third angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  13. 13.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  15. 15.Three angles meet at a point. Two of them are 120° and 140°. What is the third angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  20. 20.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  23. 23.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  24. 24.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  25. 25.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  27. 27.Two angles of a triangle are 35° and 90°. What is the third angle (in degrees)?
  28. 28.Two angles of a triangle are 55° and 55°. What is the third angle (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 70° and 170°. What is the third angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 140° and 160°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 80° and 210°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 25° and 125°. What is the third angle (in degrees)?
  33. 33.Two angles of a triangle are 30° and 95°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 50° and 70°. What is the third angle (in degrees)?
  35. 35.An angle measures 130°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  36. 36.An angle measures 175°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  37. 37.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  38. 38.Two angles of a triangle are 45° and 120°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 140° and 150°. What is the third angle (in degrees)?
  40. 40.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?

Answer key

  1. Right
  2. 170
  3. 60
  4. Obtuse
  5. 35
  6. Straight
  7. 5
  8. 50
  9. 20
  10. 45
  11. 130
  12. 15
  13. 85
  14. 90
  15. 100
  16. 55
  17. 30
  18. 40
  19. 115
  20. 60
  21. 30
  22. 120
  23. Acute
  24. 75
  25. 150
  26. 130
  27. 55
  28. 70
  29. 120
  30. 60
  31. 70
  32. 30
  33. 55
  34. 240
  35. Obtuse
  36. Obtuse
  37. 40
  38. 15
  39. 70
  40. 70

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