← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 815 · 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 80° and 30°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 70° and 90°. What is the third angle (in degrees)?
  3. 3.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  4. 4.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  5. 5.Three angles meet at a point. Two of them are 60° and 240°. What is the third angle (in degrees)?
  6. 6.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  8. 8.Three angles meet at a point. Two of them are 120° and 90°. What is the third angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  10. 10.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 60° and 100°. What is the third angle (in degrees)?
  14. 14.An angle measures 25°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  15. 15.Two angles of a triangle are 50° and 100°. What is the third angle (in degrees)?
  16. 16.Three angles meet at a point. Two of them are 130° and 170°. What is the third angle (in degrees)?
  17. 17.Three angles meet at a point. Two of them are 90° and 110°. What is the third angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  19. 19.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  20. 20.Two angles of a triangle are 80° and 70°. What is the third angle (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  22. 22.Two angles of a triangle are 40° and 80°. What is the third angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 110° and 50°. What is the third angle (in degrees)?
  24. 24.Three angles meet at a point. Two of them are 130° and 60°. What is the third angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 30° and 70°. What is the third angle (in degrees)?
  27. 27.Three angles meet at a point. Two of them are 80° and 160°. What is the third angle (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  29. 29.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 100°. What is the other angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  32. 32.Two angles of a triangle are 80° and 65°. What is the third angle (in degrees)?
  33. 33.Two angles of a triangle are 70° and 30°. What is the third angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  35. 35.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 80° and 100°. What is the third angle (in degrees)?
  37. 37.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  38. 38.Two angles of a triangle are 85° and 55°. What is the third angle (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 100° and 190°. What is the third angle (in degrees)?
  40. 40.An angle measures 155°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight

Answer key

  1. 70
  2. 20
  3. Straight
  4. 110
  5. 60
  6. 30
  7. 60
  8. 150
  9. 30
  10. 90
  11. 90
  12. 10
  13. 200
  14. Acute
  15. 30
  16. 60
  17. 160
  18. 165
  19. Right
  20. 30
  21. 120
  22. 60
  23. 200
  24. 170
  25. 140
  26. 80
  27. 120
  28. 35
  29. 150
  30. 80
  31. 100
  32. 35
  33. 80
  34. 80
  35. 120
  36. 180
  37. 50
  38. 40
  39. 70
  40. Obtuse

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