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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 993 · 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.Three angles meet at a point. Two of them are 50° and 130°. What is the third angle (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  4. 4.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  5. 5.Two angles of a triangle are 60° and 115°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 110° and 190°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  9. 9.An angle measures 110°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  10. 10.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  11. 11.Three angles meet at a point. Two of them are 60° and 110°. What is the third angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 110° and 100°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  15. 15.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  19. 19.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  20. 20.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  21. 21.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 50° and 80°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 150° and 100°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 70° and 20°. What is the third angle (in degrees)?
  26. 26.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  28. 28.Two angles of a triangle are 35° and 50°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 120° and 70°. What is the third angle (in degrees)?
  32. 32.Two angles of a triangle are 65° and 100°. What is the third angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  34. 34.An angle measures 15°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  35. 35.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  39. 39.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  40. 40.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?

Answer key

  1. 180
  2. 150
  3. Straight
  4. 15
  5. 5
  6. 90
  7. 60
  8. 70
  9. Obtuse
  10. 25
  11. 190
  12. 40
  13. 150
  14. 65
  15. 50
  16. 10
  17. 120
  18. 160
  19. Right
  20. 85
  21. 145
  22. 140
  23. 230
  24. 110
  25. 90
  26. 90
  27. 20
  28. 95
  29. 60
  30. 65
  31. 170
  32. 15
  33. 45
  34. Acute
  35. 30
  36. 50
  37. 85
  38. 150
  39. Acute
  40. 75

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