Class 5 Maths Worksheet: Angles
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.An angle measures 70°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
- 2.Three angles meet at a point. Two of them are 120° and 160°. What is the third angle (in degrees)?
- 3.Two angles of a triangle are 50° and 120°. What is the third angle (in degrees)?
- 4.What is the smaller angle between the hands of a clock at 5 o'clock (in degrees)?
- 5.An angle measures 180°. What kind of angle is it? (a) Right (b) Acute (c) Straight
- 6.Three angles meet at a point. Two of them are 90° and 80°. What is the third angle (in degrees)?
- 7.What is the smaller angle between the hands of a clock at 3 o'clock (in degrees)?
- 8.A right angle is split into two angles. One of them is 50°. What is the other angle (in degrees)?
- 9.Two angles together make a straight line. One of them is 60°. What is the other angle (in degrees)?
- 10.A right angle is split into two angles. One of them is 20°. What is the other angle (in degrees)?
- 11.A right angle is split into two angles. One of them is 5°. What is the other angle (in degrees)?
- 12.Three angles meet at a point. Two of them are 60° and 60°. What is the third angle (in degrees)?
- 13.What is the smaller angle between the hands of a clock at 6 o'clock (in degrees)?
- 14.Two angles of a triangle are 80° and 65°. What is the third angle (in degrees)?
- 15.An angle measures 45°. What kind of angle is it? (a) Right (b) Acute (c) Obtuse
- 16.What is the smaller angle between the hands of a clock at 11 o'clock (in degrees)?
- 17.Two angles together make a straight line. One of them is 160°. What is the other angle (in degrees)?
- 18.What is the smaller angle between the hands of a clock at 8 o'clock (in degrees)?
- 19.Three angles meet at a point. Two of them are 50° and 130°. What is the third angle (in degrees)?
- 20.What is the smaller angle between the hands of a clock at 1 o'clock (in degrees)?
- 21.Two angles of a triangle are 60° and 80°. What is the third angle (in degrees)?
- 22.Two angles of a triangle are 55° and 40°. What is the third angle (in degrees)?
- 23.Two angles together make a straight line. One of them is 10°. What is the other angle (in degrees)?
- 24.An angle measures 90°. What kind of angle is it? (a) Right (b) Obtuse (c) Acute
- 25.An angle measures 15°. What kind of angle is it? (a) Obtuse (b) Straight (c) Acute
- 26.Two angles together make a straight line. One of them is 90°. What is the other angle (in degrees)?
- 27.Three angles meet at a point. Two of them are 110° and 50°. What is the third angle (in degrees)?
- 28.Three angles meet at a point. Two of them are 80° and 110°. What is the third angle (in degrees)?
- 29.A right angle is split into two angles. One of them is 85°. What is the other angle (in degrees)?
- 30.Three angles meet at a point. Two of them are 60° and 120°. What is the third angle (in degrees)?
- 31.What is the smaller angle between the hands of a clock at 2 o'clock (in degrees)?
- 32.What is the smaller angle between the hands of a clock at 10 o'clock (in degrees)?
- 33.Two angles together make a straight line. One of them is 35°. What is the other angle (in degrees)?
- 34.Two angles together make a straight line. One of them is 115°. What is the other angle (in degrees)?
- 35.Two angles of a triangle are 100° and 65°. What is the third angle (in degrees)?
- 36.Two angles together make a straight line. One of them is 150°. What is the other angle (in degrees)?
- 37.Two angles of a triangle are 70° and 30°. What is the third angle (in degrees)?
- 38.A right angle is split into two angles. One of them is 45°. What is the other angle (in degrees)?
- 39.A right angle is split into two angles. One of them is 10°. What is the other angle (in degrees)?
- 40.Two angles of a triangle are 95° and 75°. What is the third angle (in degrees)?
Answer key
- Acute
- 80
- 10
- 150
- Straight
- 190
- 90
- 40
- 120
- 70
- 85
- 240
- 180
- 35
- Acute
- 30
- 20
- 120
- 180
- 30
- 40
- 85
- 170
- Right
- Acute
- 90
- 200
- 170
- 5
- 180
- 60
- 60
- 145
- 65
- 15
- 30
- 80
- 45
- 80
- 10
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