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Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 877 · 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 110°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 90° and 75°. What is the third angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 120° and 150°. What is the third angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  6. 6.Two angles of a triangle are 35° and 75°. What is the third angle (in degrees)?
  7. 7.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  8. 8.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 100° and 70°. What is the third angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  12. 12.An angle measures 90°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  13. 13.Three angles meet at a point. Two of them are 70° and 70°. What is the third angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  15. 15.Two angles of a triangle are 30° and 65°. What is the third angle (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 80° and 120°. What is the third angle (in degrees)?
  18. 18.Two angles of a triangle are 95° and 60°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 50° and 210°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 25° and 125°. What is the third angle (in degrees)?
  21. 21.An angle measures 65°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  22. 22.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 65° and 65°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 35° and 125°. What is the third angle (in degrees)?
  28. 28.Two angles of a triangle are 75° and 95°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  31. 31.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 70° and 160°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 70° and 110°. What is the third angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  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 together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  39. 39.Two angles of a triangle are 25° and 100°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 80° and 60°. What is the third angle (in degrees)?

Answer key

  1. 200
  2. 15
  3. 25
  4. 90
  5. 30
  6. 70
  7. Straight
  8. 35
  9. 65
  10. 10
  11. 90
  12. Right
  13. 220
  14. 165
  15. 85
  16. 150
  17. 160
  18. 25
  19. 100
  20. 30
  21. Acute
  22. 15
  23. 50
  24. 80
  25. 85
  26. 50
  27. 20
  28. 10
  29. 30
  30. 5
  31. 180
  32. 170
  33. 90
  34. 130
  35. 180
  36. 120
  37. 40
  38. 120
  39. 55
  40. 220

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