← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 751 · 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 65° and 45°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 70° and 35°. What is the third angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  4. 4.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  6. 6.Two angles together make a straight line. One of them is 140°. What is the other angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 25°. What is the other angle (in degrees)?
  8. 8.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  9. 9.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
  10. 10.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  11. 11.An angle measures 180°. What kind of angle is it? (a) Obtuse (b) Acute (c) Straight
  12. 12.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  13. 13.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  14. 14.Two angles of a triangle are 65° and 105°. What is the third angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  16. 16.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  17. 17.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  18. 18.Two angles of a triangle are 45° and 90°. What is the third angle (in degrees)?
  19. 19.Two angles of a triangle are 35° and 65°. What is the third angle (in degrees)?
  20. 20.Two angles of a triangle are 20° and 50°. What is the third angle (in degrees)?
  21. 21.Three angles meet at a point. Two of them are 100° and 70°. What is the third angle (in degrees)?
  22. 22.Two angles of a triangle are 20° and 85°. What is the third angle (in degrees)?
  23. 23.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  25. 25.Two angles together make a straight line. One of them is 120°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 30° and 75°. What is the third angle (in degrees)?
  27. 27.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute
  28. 28.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  29. 29.Three angles meet at a point. Two of them are 110° and 190°. What is the third angle (in degrees)?
  30. 30.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  31. 31.Two angles of a triangle are 65° and 50°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  33. 33.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  34. 34.Two angles of a triangle are 80° and 50°. What is the third angle (in degrees)?
  35. 35.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  36. 36.Three angles meet at a point. Two of them are 110° and 130°. What is the third angle (in degrees)?
  37. 37.Two angles of a triangle are 85° and 65°. What is the third angle (in degrees)?
  38. 38.Two angles together make a straight line. One of them is 80°. What is the other angle (in degrees)?
  39. 39.Two angles of a triangle are 95° and 45°. What is the third angle (in degrees)?
  40. 40.Three angles meet at a point. Two of them are 100° and 180°. What is the third angle (in degrees)?

Answer key

  1. 70
  2. 75
  3. 70
  4. 55
  5. 90
  6. 40
  7. 65
  8. 15
  9. 70
  10. 35
  11. Straight
  12. 180
  13. 60
  14. 10
  15. 25
  16. 75
  17. 150
  18. 45
  19. 80
  20. 110
  21. 190
  22. 75
  23. 80
  24. 130
  25. 60
  26. 75
  27. Right
  28. 30
  29. 60
  30. 135
  31. 65
  32. 45
  33. 120
  34. 50
  35. 55
  36. 120
  37. 30
  38. 100
  39. 40
  40. 80

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