← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 103 · 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.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  2. 2.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  5. 5.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  7. 7.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  12. 12.Two angles of a triangle are 35° and 60°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  16. 16.Two angles of a triangle are 75° and 45°. What is the third angle (in degrees)?
  17. 17.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 100° and 170°. What is the third angle (in degrees)?
  20. 20.An angle measures 20°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  21. 21.An angle measures 10°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  22. 22.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 80° and 80°. What is the third angle (in degrees)?
  24. 24.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  25. 25.An angle measures 80°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  26. 26.Two angles of a triangle are 60° and 115°. What is the third angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 150° and 120°. What is the third angle (in degrees)?
  28. 28.Two angles of a triangle are 55° and 70°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 130° and 80°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  32. 32.Two angles of a triangle are 85° and 30°. What is the third angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 60° and 230°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 40° and 90°. What is the third angle (in degrees)?
  36. 36.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  37. 37.Three angles meet at a point. Two of them are 80° and 60°. What is the third angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 150° and 90°. What is the third angle (in degrees)?
  39. 39.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?

Answer key

  1. 150
  2. 70
  3. 120
  4. 90
  5. 50
  6. 150
  7. 60
  8. 105
  9. 70
  10. 75
  11. 60
  12. 85
  13. 120
  14. 85
  15. 65
  16. 60
  17. 35
  18. 90
  19. 90
  20. Acute
  21. Acute
  22. 20
  23. 200
  24. Straight
  25. Acute
  26. 5
  27. 90
  28. 55
  29. 80
  30. 150
  31. 65
  32. 65
  33. 155
  34. 70
  35. 50
  36. 60
  37. 220
  38. 120
  39. 95
  40. 135

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets