← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 689 · 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 100° and 35°. What is the third angle (in degrees)?
  2. 2.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  6. 6.Two angles of a triangle are 85° and 75°. What is the third angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  12. 12.Three angles meet at a point. Two of them are 130° and 130°. What is the third angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 50° and 110°. What is the third angle (in degrees)?
  14. 14.Two angles of a triangle are 60° and 30°. What is the third angle (in degrees)?
  15. 15.Two angles of a triangle are 55° and 25°. What is the third angle (in degrees)?
  16. 16.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  17. 17.An angle measures 65°. What kind of angle is it? (a) Acute (b) Right (c) Straight
  18. 18.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  19. 19.Two angles of a triangle are 40° and 30°. What is the third angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 150° and 130°. What is the third angle (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 70° and 100°. What is the third angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  26. 26.An angle measures 90°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  27. 27.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 60° and 130°. What is the third angle (in degrees)?
  29. 29.Two angles of a triangle are 45° and 20°. What is the third angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  31. 31.An angle measures 60°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  32. 32.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 70° and 30°. What is the third angle (in degrees)?
  34. 34.Two angles of a triangle are 90° and 30°. What is the third angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 90° and 180°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  37. 37.Two angles of a triangle are 25° and 60°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 105°. What is the other angle (in degrees)?
  39. 39.Two angles of a triangle are 85° and 40°. What is the third angle (in degrees)?
  40. 40.An angle measures 85°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute

Answer key

  1. 45
  2. 30
  3. 155
  4. 120
  5. 180
  6. 20
  7. 70
  8. 10
  9. 135
  10. 35
  11. 45
  12. 100
  13. 200
  14. 90
  15. 100
  16. 60
  17. Acute
  18. 40
  19. 110
  20. 140
  21. 50
  22. 80
  23. 30
  24. 190
  25. 165
  26. Right
  27. 120
  28. 170
  29. 115
  30. 65
  31. Acute
  32. 35
  33. 80
  34. 60
  35. 90
  36. 30
  37. 95
  38. 75
  39. 55
  40. Acute

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