← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 948 · 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 40° and 60°. What is the third angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 110° and 170°. What is the third angle (in degrees)?
  3. 3.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  4. 4.Two angles of a triangle are 55° and 45°. What is the third angle (in degrees)?
  5. 5.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  6. 6.Three angles meet at a point. Two of them are 90° and 70°. What is the third angle (in degrees)?
  7. 7.Two angles together make a straight line. One of them is 55°. What is the other angle (in degrees)?
  8. 8.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  9. 9.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
  10. 10.Three angles meet at a point. Two of them are 70° and 140°. What is the third angle (in degrees)?
  11. 11.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  12. 12.An angle measures 90°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  13. 13.Two angles together make a straight line. One of them is 30°. What is the other angle (in degrees)?
  14. 14.Two angles together make a straight line. One of them is 130°. What is the other angle (in degrees)?
  15. 15.An angle measures 85°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  16. 16.Three angles meet at a point. Two of them are 130° and 150°. What is the third angle (in degrees)?
  17. 17.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  18. 18.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
  19. 19.Two angles together make a straight line. One of them is 85°. What is the other angle (in degrees)?
  20. 20.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
  22. 22.Two angles of a triangle are 55° and 60°. What is the third angle (in degrees)?
  23. 23.Two angles of a triangle are 40° and 90°. What is the third angle (in degrees)?
  24. 24.An angle measures 95°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
  25. 25.Three angles meet at a point. Two of them are 110° and 190°. What is the third angle (in degrees)?
  26. 26.A right angle is split into two angles. One of them is 35°. What is the other angle (in degrees)?
  27. 27.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
  28. 28.Two angles together make a straight line. One of them is 50°. What is the other angle (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 20° and 35°. What is the third angle (in degrees)?
  31. 31.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 75°. What is the other angle (in degrees)?
  33. 33.Two angles of a triangle are 80° and 75°. What is the third angle (in degrees)?
  34. 34.Two angles of a triangle are 30° and 145°. What is the third angle (in degrees)?
  35. 35.An angle measures 135°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  36. 36.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  37. 37.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  38. 38.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  39. 39.Two angles together make a straight line. One of them is 165°. What is the other angle (in degrees)?
  40. 40.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?

Answer key

  1. 80
  2. 80
  3. 25
  4. 80
  5. 10
  6. 200
  7. 125
  8. 160
  9. 170
  10. 150
  11. 80
  12. Right
  13. 150
  14. 50
  15. Acute
  16. 80
  17. 60
  18. 240
  19. 95
  20. 65
  21. 5
  22. 65
  23. 50
  24. Obtuse
  25. 60
  26. 55
  27. 30
  28. 130
  29. 165
  30. 125
  31. 90
  32. 105
  33. 25
  34. 5
  35. Obtuse
  36. 180
  37. 10
  38. 15
  39. 15
  40. 150

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