← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 123 · 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 of a triangle are 90° and 55°. What is the third angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 70° and 80°. What is the third angle (in degrees)?
  3. 3.An angle measures 55°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  4. 4.An angle measures 160°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  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 3 o'clock (in degrees)?
  7. 7.An angle measures 25°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  8. 8.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  10. 10.An angle measures 80°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  11. 11.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  12. 12.Two angles of a triangle are 60° and 45°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 150° and 60°. What is the third angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 60° and 100°. What is the third angle (in degrees)?
  21. 21.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  22. 22.Two angles of a triangle are 85° and 25°. What is the third angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 150° and 90°. What is the third angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  32. 32.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  33. 33.Three angles meet at a point. Two of them are 90° and 120°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 120° and 90°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 120° and 60°. What is the third angle (in degrees)?
  36. 36.Two angles of a triangle are 30° and 35°. What is the third angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  38. 38.Three angles meet at a point. Two of them are 90° and 190°. What is the third angle (in degrees)?
  39. 39.Two angles of a triangle are 70° and 30°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?

Answer key

  1. 35
  2. 210
  3. Acute
  4. Obtuse
  5. 50
  6. 90
  7. Acute
  8. 150
  9. 170
  10. Acute
  11. 85
  12. 75
  13. 30
  14. 65
  15. 120
  16. 80
  17. 150
  18. 55
  19. 90
  20. 200
  21. Right
  22. 70
  23. 75
  24. 5
  25. 85
  26. 10
  27. 120
  28. 60
  29. 40
  30. 120
  31. 130
  32. Straight
  33. 150
  34. 150
  35. 180
  36. 115
  37. 35
  38. 80
  39. 80
  40. 190

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