Year 6 Angles Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 6 angles worksheet.
Year 6 · Mathematics · Angles
Year 6 Angles Worksheet — Level 2 — Answers
Success Tutoring
State the angle rule you use.
1.Two angles on a straight line are 111° and x°. Find x.
Answer: x = 69
- Angles on a straight line add to 180°
- x = 180 − 111 = 69
2.Two angles of a triangle are 114° and 91°. Find the third angle.
Answer: -25°
- Angles in a triangle add to 180°
- 180 − 114 − 91 = -25
3.Two angles of a triangle are 85° and 36°. Find the third angle.
Answer: 59°
- Angles in a triangle add to 180°
- 180 − 85 − 36 = 59
4.Two angles on a straight line are 113° and x°. Find x.
Answer: x = 67
- Angles on a straight line add to 180°
- x = 180 − 113 = 67
5.Two angles on a straight line are 80° and x°. Find x.
Answer: x = 100
- Angles on a straight line add to 180°
- x = 180 − 80 = 100
6.Two angles on a straight line are 129° and x°. Find x.
Answer: x = 51
- Angles on a straight line add to 180°
- x = 180 − 129 = 51
7.Two angles of a triangle are 34° and 20°. Find the third angle.
Answer: 126°
- Angles in a triangle add to 180°
- 180 − 34 − 20 = 126
8.Two angles on a straight line are 67° and x°. Find x.
Answer: x = 113
- Angles on a straight line add to 180°
- x = 180 − 67 = 113
9.Two angles of a triangle are 77° and 56°. Find the third angle.
Answer: 47°
- Angles in a triangle add to 180°
- 180 − 77 − 56 = 47
10.Two angles of a triangle are 104° and 78°. Find the third angle.
Answer: -2°
- Angles in a triangle add to 180°
- 180 − 104 − 78 = -2
Marking tips
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