Year 5 Angles Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 5 angles worksheet.
Year 5 · Mathematics · Angles
Year 5 Angles Worksheet — Level 2 — Answers
Success Tutoring
State the angle rule you use.
1.Two angles on a straight line are 39° and x°. Find x.
Answer: x = 141
- Angles on a straight line add to 180°
- x = 180 − 39 = 141
2.Two angles on a straight line are 153° and x°. Find x.
Answer: x = 27
- Angles on a straight line add to 180°
- x = 180 − 153 = 27
3.Two angles of a triangle are 105° and 38°. Find the third angle.
Answer: 37°
- Angles in a triangle add to 180°
- 180 − 105 − 38 = 37
4.Two angles of a triangle are 62° and 57°. Find the third angle.
Answer: 61°
- Angles in a triangle add to 180°
- 180 − 62 − 57 = 61
5.Two angles of a triangle are 54° and 88°. Find the third angle.
Answer: 38°
- Angles in a triangle add to 180°
- 180 − 54 − 88 = 38
6.Two angles on a straight line are 44° and x°. Find x.
Answer: x = 136
- Angles on a straight line add to 180°
- x = 180 − 44 = 136
7.Two angles on a straight line are 116° and x°. Find x.
Answer: x = 64
- Angles on a straight line add to 180°
- x = 180 − 116 = 64
8.Two angles on a straight line are 141° and x°. Find x.
Answer: x = 39
- Angles on a straight line add to 180°
- x = 180 − 141 = 39
9.Two angles on a straight line are 42° and x°. Find x.
Answer: x = 138
- Angles on a straight line add to 180°
- x = 180 − 42 = 138
10.Two angles on a straight line are 49° and x°. Find x.
Answer: x = 131
- Angles on a straight line add to 180°
- x = 180 − 49 = 131
Marking tips
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