← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 578 · 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 120° and 170°. What is the third angle (in degrees)?
  2. 2.Two angles of a triangle are 55° and 45°. What is the third angle (in degrees)?
  3. 3.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  4. 4.Two angles together make a straight line. One of them is 70°. What is the other angle (in degrees)?
  5. 5.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
  8. 8.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  9. 9.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  10. 10.Two angles together make a straight line. One of them is 95°. What is the other angle (in degrees)?
  11. 11.An angle measures 60°. What kind of angle is it? (a) Straight (b) Acute (c) Right
  12. 12.Two angles of a triangle are 50° and 65°. What is the third angle (in degrees)?
  13. 13.Two angles of a triangle are 50° and 105°. What is the third angle (in degrees)?
  14. 14.Two angles of a triangle are 50° and 55°. What is the third angle (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
  16. 16.An angle measures 180°. What kind of angle is it? (a) Acute (b) Straight (c) Right
  17. 17.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  18. 18.Two angles together make a straight line. One of them is 135°. What is the other angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 80° and 70°. What is the third angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 40°. What is the other angle (in degrees)?
  22. 22.A right angle is split into two angles. One of them is 15°. What is the other angle (in degrees)?
  23. 23.Three angles meet at a point. Two of them are 60° and 140°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 125°. What is the other angle (in degrees)?
  25. 25.An angle measures 40°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  26. 26.Two angles of a triangle are 40° and 75°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 60° and 20°. What is the third angle (in degrees)?
  28. 28.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  29. 29.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  30. 30.Two angles of a triangle are 95° and 60°. What is the third angle (in degrees)?
  31. 31.Two angles of a triangle are 85° and 45°. What is the third angle (in degrees)?
  32. 32.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  33. 33.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  34. 34.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  35. 35.Three angles meet at a point. Two of them are 140° and 50°. What is the third angle (in degrees)?
  36. 36.An angle measures 80°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  37. 37.An angle measures 145°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  38. 38.Three angles meet at a point. Two of them are 60° and 210°. What is the third angle (in degrees)?
  39. 39.Two angles of a triangle are 70° and 60°. What is the third angle (in degrees)?
  40. 40.Two angles of a triangle are 100° and 50°. What is the third angle (in degrees)?

Answer key

  1. 70
  2. 80
  3. 145
  4. 110
  5. 180
  6. 15
  7. 85
  8. 60
  9. 120
  10. 85
  11. Acute
  12. 65
  13. 25
  14. 75
  15. 45
  16. Straight
  17. Right
  18. 45
  19. 60
  20. 210
  21. 50
  22. 75
  23. 160
  24. 55
  25. Acute
  26. 65
  27. 100
  28. 150
  29. 70
  30. 25
  31. 50
  32. 35
  33. 35
  34. 10
  35. 170
  36. Acute
  37. Obtuse
  38. 90
  39. 50
  40. 30

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