← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 846 · 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 55° and 25°. What is the third angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  3. 3.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  4. 4.Three angles meet at a point. Two of them are 140° and 80°. What is the third angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  7. 7.Two angles of a triangle are 75° and 70°. What is the third angle (in degrees)?
  8. 8.Two angles of a triangle are 55° and 105°. What is the third angle (in degrees)?
  9. 9.An angle measures 170°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  10. 10.Three angles meet at a point. Two of them are 120° and 80°. What is the third angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  12. 12.Two angles together make a straight line. One of them is 65°. What is the other angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 50° and 200°. What is the third angle (in degrees)?
  14. 14.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  15. 15.An angle measures 105°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  16. 16.Two angles of a triangle are 30° and 60°. What is the third angle (in degrees)?
  17. 17.An angle measures 125°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  18. 18.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  19. 19.An angle measures 120°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  20. 20.An angle measures 15°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  21. 21.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 70° and 210°. What is the third angle (in degrees)?
  24. 24.An angle measures 150°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  25. 25.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  27. 27.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  28. 28.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 75° and 80°. What is the third angle (in degrees)?
  31. 31.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  32. 32.An angle measures 110°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  33. 33.Three angles meet at a point. Two of them are 120° and 160°. What is the third angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  35. 35.Two angles of a triangle are 55° and 75°. What is the third angle (in degrees)?
  36. 36.Two angles of a triangle are 30° and 135°. What is the third angle (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  38. 38.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  39. 39.Three angles meet at a point. Two of them are 140° and 90°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?

Answer key

  1. 100
  2. 60
  3. 60
  4. 140
  5. 120
  6. 50
  7. 35
  8. 20
  9. Obtuse
  10. 160
  11. 5
  12. 115
  13. 110
  14. 65
  15. Obtuse
  16. 90
  17. Obtuse
  18. 70
  19. Obtuse
  20. Acute
  21. 150
  22. 10
  23. 80
  24. Obtuse
  25. 150
  26. 40
  27. 110
  28. 55
  29. 35
  30. 25
  31. 90
  32. Obtuse
  33. 80
  34. 85
  35. 50
  36. 15
  37. 125
  38. 60
  39. 130
  40. 190

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