Year 6 Angles Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 6 angles worksheet.
Year 6 Angles Worksheet — Level 2 — Answers
State the angle rule you use.
1.Two angles on a straight line are 157° and x°. Find x.
Answer: x = 23
- Angles on a straight line add to 180°
- x = 180 − 157 = 23
2.Two angles of a triangle are 32° and 113°. Find the third angle.
Answer: 35°
- Angles in a triangle add to 180°
- 180 − 32 − 113 = 35
3.Two angles of a triangle are 34° and 54°. Find the third angle.
Answer: 92°
- Angles in a triangle add to 180°
- 180 − 34 − 54 = 92
4.Two angles of a triangle are 106° and 83°. Find the third angle.
Answer: -9°
- Angles in a triangle add to 180°
- 180 − 106 − 83 = -9
5.Two angles on a straight line are 135° and x°. Find x.
Answer: x = 45
- Angles on a straight line add to 180°
- x = 180 − 135 = 45
6.Two angles on a straight line are 131° and x°. Find x.
Answer: x = 49
- Angles on a straight line add to 180°
- x = 180 − 131 = 49
7.Two angles of a triangle are 63° and 117°. Find the third angle.
Answer: 0°
- Angles in a triangle add to 180°
- 180 − 63 − 117 = 0
8.Two angles on a straight line are 74° and x°. Find x.
Answer: x = 106
- Angles on a straight line add to 180°
- x = 180 − 74 = 106
9.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
10.Two angles on a straight line are 26° and x°. Find x.
Answer: x = 154
- Angles on a straight line add to 180°
- x = 180 − 26 = 154
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
Great work. Here's what to try next: