← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 807 · 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 80° and 110°. What is the third angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 140° and 120°. What is the third angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  5. 5.Two angles of a triangle are 20° and 55°. What is the third angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  7. 7.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 50° and 60°. What is the third angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  10. 10.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  11. 11.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  12. 12.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  13. 13.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  14. 14.Two angles of a triangle are 35° and 125°. What is the third angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 80° and 120°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  22. 22.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 50° and 160°. What is the third angle (in degrees)?
  25. 25.Two angles of a triangle are 60° and 50°. What is the third angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 130° and 90°. What is the third angle (in degrees)?
  27. 27.An angle measures 145°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  28. 28.An angle measures 165°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  29. 29.Two angles of a triangle are 45° and 30°. What is the third angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  36. 36.Two angles together make a straight line. One of them is 135°. What is the other angle (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 20° and 105°. What is the third angle (in degrees)?
  39. 39.An angle measures 40°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  40. 40.Two angles of a triangle are 100° and 45°. What is the third angle (in degrees)?

Answer key

  1. 170
  2. 100
  3. 85
  4. Straight
  5. 105
  6. 80
  7. 65
  8. 250
  9. 70
  10. Right
  11. 20
  12. 75
  13. 30
  14. 20
  15. 30
  16. 35
  17. 115
  18. 140
  19. 30
  20. 160
  21. 90
  22. 60
  23. 90
  24. 150
  25. 70
  26. 140
  27. Obtuse
  28. Obtuse
  29. 105
  30. 60
  31. 110
  32. 95
  33. 50
  34. 60
  35. 55
  36. 45
  37. 150
  38. 55
  39. Acute
  40. 35

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