← Angles lesson New set →

Class 5 Maths Worksheet: Angles

Maths worksheets lesson 39: Angles · Set 309 · 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 25°. What is the other angle (in degrees)?
  2. 2.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
  3. 3.Three angles meet at a point. Two of them are 80° and 200°. What is the third angle (in degrees)?
  4. 4.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
  5. 5.An angle measures 100°. What kind of angle is it? (a) Straight (b) Acute (c) Obtuse
  6. 6.An angle measures 165°. What kind of angle is it? (a) Right (b) Straight (c) Obtuse
  7. 7.Three angles meet at a point. Two of them are 120° and 140°. What is the third angle (in degrees)?
  8. 8.An angle measures 30°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
  9. 9.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
  10. 10.Two angles of a triangle are 25° and 125°. What is the third angle (in degrees)?
  11. 11.Two angles of a triangle are 95° and 35°. What is the third angle (in degrees)?
  12. 12.An angle measures 90°. What kind of angle is it? (a) Straight (b) Right (c) Obtuse
  13. 13.Two angles together make a straight line. One of them is 170°. What is the other angle (in degrees)?
  14. 14.What is the smaller angle between the hands of a clock at 4 o'clock (in degrees)?
  15. 15.A right angle is split into two angles. One of them is 30°. What is the other angle (in degrees)?
  16. 16.An angle measures 175°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  17. 17.Two angles together make a straight line. One of them is 110°. What is the other angle (in degrees)?
  18. 18.A right angle is split into two angles. One of them is 65°. What is the other angle (in degrees)?
  19. 19.An angle measures 20°. What kind of angle is it? (a) Acute (b) Right (c) Obtuse
  20. 20.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
  21. 21.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
  22. 22.An angle measures 180°. What kind of angle is it? (a) Right (b) Obtuse (c) Straight
  23. 23.Two angles of a triangle are 35° and 95°. What is the third angle (in degrees)?
  24. 24.Two angles together make a straight line. One of them is 15°. What is the other angle (in degrees)?
  25. 25.A right angle is split into two angles. One of them is 75°. What is the other angle (in degrees)?
  26. 26.Two angles of a triangle are 20° and 110°. What is the third angle (in degrees)?
  27. 27.Two angles of a triangle are 100° and 75°. What is the third angle (in degrees)?
  28. 28.An angle measures 115°. What kind of angle is it? (a) Acute (b) Obtuse (c) Straight
  29. 29.What is the smaller angle between the hands of a clock at 7 o'clock (in degrees)?
  30. 30.Three angles meet at a point. Two of them are 90° and 50°. What is the third angle (in degrees)?
  31. 31.Three angles meet at a point. Two of them are 140° and 110°. What is the third angle (in degrees)?
  32. 32.Two angles together make a straight line. One of them is 25°. What is the other angle (in degrees)?
  33. 33.A right angle is split into two angles. One of them is 70°. What is the other angle (in degrees)?
  34. 34.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
  35. 35.Two angles of a triangle are 35° and 115°. What is the third angle (in degrees)?
  36. 36.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
  37. 37.An angle measures 155°. What kind of angle is it? (a) Acute (b) Obtuse (c) Right
  38. 38.Two angles together make a straight line. One of them is 20°. What is the other angle (in degrees)?
  39. 39.An angle measures 135°. What kind of angle is it? (a) Acute (b) Straight (c) Obtuse
  40. 40.An angle measures 130°. What kind of angle is it? (a) Obtuse (b) Right (c) Acute

Answer key

  1. 65
  2. 90
  3. 80
  4. 30
  5. Obtuse
  6. Obtuse
  7. 100
  8. Acute
  9. 145
  10. 30
  11. 50
  12. Right
  13. 10
  14. 120
  15. 60
  16. Obtuse
  17. 70
  18. 25
  19. Acute
  20. 90
  21. 180
  22. Straight
  23. 50
  24. 165
  25. 15
  26. 50
  27. 5
  28. Obtuse
  29. 150
  30. 220
  31. 110
  32. 155
  33. 20
  34. 60
  35. 30
  36. 40
  37. Obtuse
  38. 160
  39. Obtuse
  40. Obtuse

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