← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 387 · 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.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  2. 2.Two angles of a triangle are 100° and 40°. What is the third angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 50° and 170°. What is the third angle (in degrees)?
  6. 6.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 120° and 60°. What is the third angle (in degrees)?
  8. 8.An angle measures 160°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  9. 9.Two angles of a triangle are 30° and 85°. What is the third angle (in degrees)?
  10. 10.An angle measures 110°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  11. 11.Two angles of a triangle are 85° and 25°. What is the third angle (in degrees)?
  12. 12.Three angles meet at a point. Two of them are 80° and 180°. What is the third angle (in degrees)?
  13. 13.An angle measures 80°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  14. 14.An angle measures 180°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  15. 15.Three angles meet at a point. Two of them are 70° and 150°. What is the third angle (in degrees)?
  16. 16.Two angles of a triangle are 75° and 30°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 130° and 170°. What is the third angle (in degrees)?
  18. 18.Two angles of a triangle are 75° and 55°. What is the third angle (in degrees)?
  19. 19.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  20. 20.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 90° and 190°. What is the third angle (in degrees)?
  25. 25.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  26. 26.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 130° and 70°. What is the third angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  30. 30.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 70° and 200°. What is the third angle (in degrees)?
  32. 32.Three angles meet at a point. Two of them are 120° and 70°. What is the third angle (in degrees)?
  33. 33.Three angles meet at a point. Two of them are 130° and 150°. What is the third angle (in degrees)?
  34. 34.Three angles meet at a point. Two of them are 60° and 180°. What is the third angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 80° and 110°. What is the third angle (in degrees)?
  37. 37.Two angles of a triangle are 20° and 90°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 80° and 100°. What is the third angle (in degrees)?
  40. 40.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?

Answer key

  1. Right
  2. 40
  3. 110
  4. 70
  5. 140
  6. 80
  7. 180
  8. Obtuse
  9. 65
  10. Obtuse
  11. 70
  12. 100
  13. Acute
  14. Straight
  15. 140
  16. 75
  17. 60
  18. 50
  19. 110
  20. 20
  21. 55
  22. 180
  23. 30
  24. 80
  25. Obtuse
  26. 30
  27. 90
  28. 160
  29. 155
  30. 45
  31. 90
  32. 170
  33. 80
  34. 120
  35. 165
  36. 170
  37. 70
  38. 20
  39. 180
  40. 25

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