← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 881 · 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 70°. What is the other angle (in degrees)?
  2. 2.Two angles of a triangle are 40° and 90°. What is the third angle (in degrees)?
  3. 3.Two angles of a triangle are 25° and 150°. What is the third angle (in degrees)?
  4. 4.An angle measures 180°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  5. 5.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  6. 6.Two angles of a triangle are 45° and 85°. What is the third angle (in degrees)?
  7. 7.Two angles of a triangle are 30° and 120°. What is the third angle (in degrees)?
  8. 8.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  9. 9.Two angles of a triangle are 80° and 40°. What is the third angle (in degrees)?
  10. 10.Two angles of a triangle are 70° and 75°. What is the third angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  12. 12.Two angles of a triangle are 20° and 120°. What is the third angle (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  14. 14.Two angles of a triangle are 25° and 40°. What is the third angle (in degrees)?
  15. 15.Two angles of a triangle are 100° and 35°. What is the third angle (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  19. 19.An angle measures 150°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  20. 20.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  21. 21.An angle measures 90°. What kind of angle is it? (a) Right (b) Straight (c) Acute
  22. 22.Three angles meet at a point. Two of them are 150° and 80°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 110° and 150°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 25° and 85°. What is the third angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  28. 28.Two angles of a triangle are 55° and 105°. What is the third angle (in degrees)?
  29. 29.A right angle is split into two angles. One of them is 55°. What is the other 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 of a triangle are 80° and 20°. What is the third angle (in degrees)?
  32. 32.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  33. 33.An angle measures 20°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  34. 34.Two angles of a triangle are 100° and 55°. What is the third angle (in degrees)?
  35. 35.Two angles of a triangle are 60° and 35°. What is the third angle (in degrees)?
  36. 36.Two angles of a triangle are 65° and 55°. What is the third angle (in degrees)?
  37. 37.Two angles of a triangle are 75° and 60°. What is the third angle (in degrees)?
  38. 38.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  39. 39.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  40. 40.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?

Answer key

  1. 20
  2. 50
  3. 5
  4. Straight
  5. 120
  6. 50
  7. 30
  8. 60
  9. 60
  10. 35
  11. 50
  12. 40
  13. 120
  14. 115
  15. 45
  16. 60
  17. 40
  18. 85
  19. Obtuse
  20. 15
  21. Right
  22. 130
  23. 100
  24. 150
  25. 65
  26. 70
  27. 30
  28. 20
  29. 35
  30. 60
  31. 80
  32. 180
  33. Acute
  34. 25
  35. 85
  36. 60
  37. 45
  38. 80
  39. 150
  40. 15

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