← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 72 · 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 120° and 50°. What is the third angle (in degrees)?
  2. 2.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  3. 3.Two angles of a triangle are 35° and 55°. What is the third angle (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 120° and 90°. What is the third angle (in degrees)?
  5. 5.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  6. 6.Three angles meet at a point. Two of them are 90° and 150°. What is the third angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  8. 8.An angle measures 160°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  9. 9.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 60° and 90°. What is the third angle (in degrees)?
  11. 11.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  12. 12.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  13. 13.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  14. 14.An angle measures 20°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  15. 15.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  18. 18.Two angles of a triangle are 75° and 35°. What is the third angle (in degrees)?
  19. 19.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 110° and 170°. What is the third angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 90° and 80°. What is the third angle (in degrees)?
  23. 23.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 140° and 90°. What is the third angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 30° and 40°. What is the third angle (in degrees)?
  27. 27.An angle measures 135°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  28. 28.Two angles of a triangle are 25° and 45°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 100° and 30°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  35. 35.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  36. 36.An angle measures 70°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  37. 37.Three angles meet at a point. Two of them are 130° and 80°. What is the third angle (in degrees)?
  38. 38.Two angles of a triangle are 85° and 75°. What is the third angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  40. 40.Two angles of a triangle are 75° and 70°. What is the third angle (in degrees)?

Answer key

  1. 190
  2. Right
  3. 90
  4. 150
  5. 30
  6. 120
  7. 75
  8. Obtuse
  9. 45
  10. 210
  11. Straight
  12. 20
  13. 170
  14. Acute
  15. 105
  16. 10
  17. 60
  18. 70
  19. 40
  20. 55
  21. 80
  22. 190
  23. 50
  24. 130
  25. 80
  26. 110
  27. Obtuse
  28. 110
  29. 150
  30. 35
  31. 50
  32. 155
  33. 180
  34. 25
  35. 10
  36. Acute
  37. 150
  38. 20
  39. 30
  40. 35

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