← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 46 · 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.Three angles meet at a point. Two of them are 80° and 190°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 65° and 25°. What is the third angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
  4. 4.An angle measures 150°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  5. 5.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  6. 6.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  7. 7.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?
  9. 9.An angle measures 65°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  10. 10.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  11. 11.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  12. 12.Two angles of a triangle are 80° and 60°. What is the third angle (in degrees)?
  13. 13.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  14. 14.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  15. 15.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  16. 16.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  17. 17.Two angles of a triangle are 40° and 135°. What is the third angle (in degrees)?
  18. 18.An angle measures 85°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  19. 19.Two angles of a triangle are 45° and 25°. 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.Two angles of a triangle are 45° and 125°. What is the third angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  23. 23.Two angles of a triangle are 20° and 60°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  25. 25.Three angles meet at a point. Two of them are 70° and 190°. What is the third angle (in degrees)?
  26. 26.Two angles of a triangle are 100° and 20°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 90° and 40°. What is the third angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  29. 29.An angle measures 30°. What kind of angle is it? (a) Straight (b) Right (c) Acute
  30. 30.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  31. 31.An angle measures 35°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  32. 32.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 20° and 155°. What is the third angle (in degrees)?
  34. 34.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  35. 35.Two angles of a triangle are 55° and 50°. What is the third angle (in degrees)?
  36. 36.An angle measures 20°. What kind of angle is it? (a) Right (b) Acute (c) Straight
  37. 37.Two angles of a triangle are 95° and 20°. What is the third angle (in degrees)?
  38. 38.Two angles of a triangle are 60° and 105°. What is the third angle (in degrees)?
  39. 39.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 120° and 50°. What is the third angle (in degrees)?

Answer key

  1. 90
  2. 90
  3. 20
  4. Obtuse
  5. 30
  6. 45
  7. 60
  8. 25
  9. Acute
  10. 50
  11. 60
  12. 40
  13. Straight
  14. 45
  15. 90
  16. Right
  17. 5
  18. Acute
  19. 110
  20. 20
  21. 10
  22. 30
  23. 100
  24. 145
  25. 100
  26. 60
  27. 50
  28. 80
  29. Acute
  30. 15
  31. Acute
  32. 170
  33. 5
  34. 65
  35. 75
  36. Acute
  37. 65
  38. 15
  39. 90
  40. 190

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