← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 278 · 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.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
  2. 2.Three angles meet at a point. Two of them are 50° and 190°. What is the third angle (in degrees)?
  3. 3.Two angles of a triangle are 90° and 40°. What is the third angle (in degrees)?
  4. 4.An angle measures 160°. What kind of angle is it? (a) Straight (b) Obtuse (c) Acute
  5. 5.Two angles of a triangle are 40° and 110°. What is the third angle (in degrees)?
  6. 6.A right angle is split into two angles. One of them is 60°. What is the other angle (in degrees)?
  7. 7.A right angle is split into two angles. One of them is 55°. What is the other angle (in degrees)?
  8. 8.An angle measures 60°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
  9. 9.Two angles together make a straight line. One of them is 145°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 100° and 65°. What is the third angle (in degrees)?
  11. 11.An angle measures 175°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  12. 12.Two angles of a triangle are 45° and 65°. What is the third angle (in degrees)?
  13. 13.Three angles meet at a point. Two of them are 130° and 170°. What is the third angle (in degrees)?
  14. 14.An angle measures 135°. What kind of angle is it? (a) Straight (b) Obtuse (c) Right
  15. 15.Two angles together make a straight line. One of them is 45°. What is the other angle (in degrees)?
  16. 16.Two angles together make a straight line. One of them is 40°. What is the other angle (in degrees)?
  17. 17.Two angles of a triangle are 50° and 70°. What is the third angle (in degrees)?
  18. 18.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  19. 19.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
  20. 20.Three angles meet at a point. Two of them are 70° and 80°. What is the third angle (in degrees)?
  21. 21.A right angle is split into two angles. One of them is 80°. What is the other angle (in degrees)?
  22. 22.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  23. 23.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  24. 24.What is the smaller angle between the hands of a clock at 9 o'clock (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  26. 26.Two angles together make a straight line. One of them is 155°. What is the other angle (in degrees)?
  27. 27.Two angles of a triangle are 75° and 50°. What is the third angle (in degrees)?
  28. 28.Three angles meet at a point. Two of them are 100° and 140°. What is the third angle (in degrees)?
  29. 29.An angle measures 110°. What kind of angle is it? (a) Obtuse (b) Right (c) Straight
  30. 30.Three angles meet at a point. Two of them are 110° and 80°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 90° and 140°. What is the third angle (in degrees)?
  32. 32.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
  33. 33.Two angles of a triangle are 20° and 125°. What is the third angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  35. 35.Two angles of a triangle are 70° and 30°. What is the third angle (in degrees)?
  36. 36.An angle measures 50°. What kind of angle is it? (a) Obtuse (b) Acute (c) Right
  37. 37.Two angles of a triangle are 35° and 50°. What is the third angle (in degrees)?
  38. 38.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  39. 39.An angle measures 90°. What kind of angle is it? (a) Obtuse (b) Straight (c) Right
  40. 40.An angle measures 180°. What kind of angle is it? (a) Straight (b) Acute (c) Right

Answer key

  1. 80
  2. 120
  3. 50
  4. Obtuse
  5. 30
  6. 30
  7. 35
  8. Acute
  9. 35
  10. 15
  11. Obtuse
  12. 70
  13. 60
  14. Obtuse
  15. 135
  16. 140
  17. 60
  18. 145
  19. 150
  20. 210
  21. 10
  22. 90
  23. 60
  24. 90
  25. 25
  26. 25
  27. 55
  28. 120
  29. Obtuse
  30. 170
  31. 130
  32. 60
  33. 35
  34. 30
  35. 80
  36. Acute
  37. 95
  38. 40
  39. Right
  40. Straight

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