← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 943 · 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.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  4. 4.An angle measures 115°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  5. 5.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  7. 7.Two angles of a triangle are 50° and 105°. What is the third angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  9. 9.Two angles of a triangle are 35° and 135°. What is the third angle (in degrees)?
  10. 10.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  11. 11.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  12. 12.An angle measures 20°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  13. 13.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  19. 19.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  20. 20.An angle measures 55°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  21. 21.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 130° and 150°. What is the third angle (in degrees)?
  23. 23.Two angles of a triangle are 80° and 55°. What is the third angle (in degrees)?
  24. 24.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  25. 25.Two angles of a triangle are 30° and 115°. What is the third angle (in degrees)?
  26. 26.Two angles of a triangle are 50° and 50°. What is the third angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 150° and 50°. What is the third angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  29. 29.An angle measures 90°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  30. 30.Two angles of a triangle are 40° and 40°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 70° and 70°. What is the third angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  35. 35.An angle measures 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  36. 36.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  37. 37.An angle measures 25°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  38. 38.Three angles meet at a point. Two of them are 70° and 190°. What is the third angle (in degrees)?
  39. 39.Two angles of a triangle are 70° and 90°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?

Answer key

  1. 30
  2. 85
  3. 50
  4. Obtuse
  5. 65
  6. 25
  7. 25
  8. 170
  9. 10
  10. 15
  11. 40
  12. Acute
  13. 125
  14. 80
  15. 5
  16. 75
  17. 90
  18. 180
  19. 50
  20. Acute
  21. 85
  22. 80
  23. 45
  24. 55
  25. 35
  26. 80
  27. 160
  28. 120
  29. Right
  30. 100
  31. 140
  32. 220
  33. 65
  34. 60
  35. Straight
  36. 30
  37. Acute
  38. 100
  39. 20
  40. 70

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