← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 582 · 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 75°. What is the other angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 50° and 90°. What is the third angle (in degrees)?
  3. 3.An angle measures 170°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  4. 4.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  5. 5.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  7. 7.Three angles meet at a point. Two of them are 130° and 50°. What is the third angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 60° and 90°. What is the third 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.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  13. 13.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  14. 14.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  15. 15.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  16. 16.Two angles of a triangle are 35° and 65°. What is the third angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  18. 18.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
  20. 20.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  21. 21.Two angles of a triangle are 30° and 110°. What is the third angle (in degrees)?
  22. 22.Three angles meet at a point. Two of them are 140° and 90°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 120° and 80°. What is the third angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  26. 26.Three angles meet at a point. Two of them are 150° and 130°. What is the third angle (in degrees)?
  27. 27.An angle measures 155°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  28. 28.Two angles of a triangle are 80° and 40°. What is the third angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  30. 30.Two angles of a triangle are 45° and 65°. What is the third angle (in degrees)?
  31. 31.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  34. 34.Two angles of a triangle are 80° and 30°. What is the third angle (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 50° and 50°. What is the third angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
  39. 39.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?

Answer key

  1. 15
  2. 220
  3. Obtuse
  4. Straight
  5. 70
  6. 120
  7. 180
  8. 75
  9. 155
  10. 210
  11. 45
  12. 85
  13. Acute
  14. 90
  15. Right
  16. 80
  17. 50
  18. 150
  19. 120
  20. 90
  21. 40
  22. 130
  23. 70
  24. 160
  25. 20
  26. 80
  27. Obtuse
  28. 60
  29. 60
  30. 70
  31. 30
  32. 65
  33. 55
  34. 70
  35. 90
  36. 260
  37. 105
  38. 30
  39. 35
  40. 30

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