Year 6 Angles Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 6 angles worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · AnglesYear 6 Angles Worksheet — Level 2 — Practice Set 4 — Answers
State the angle rule you use.
1.Two angles on a straight line are 40° and x°. Find x.
Answer: x = 140
- Angles on a straight line add to 180°
- x = 180 − 40 = 140
2.Two angles on a straight line are 86° and x°. Find x.
Answer: x = 94
- Angles on a straight line add to 180°
- x = 180 − 86 = 94
3.Two angles of a triangle are 95° and 49°. Find the third angle.
Answer: 36°
- Angles in a triangle add to 180°
- 180 − 95 − 49 = 36
4.Two angles of a triangle are 48° and 120°. Find the third angle.
Answer: 12°
- Angles in a triangle add to 180°
- 180 − 48 − 120 = 12
5.Two angles on a straight line are 92° and x°. Find x.
Answer: x = 88
- Angles on a straight line add to 180°
- x = 180 − 92 = 88
6.Two angles of a triangle are 92° and 58°. Find the third angle.
Answer: 30°
- Angles in a triangle add to 180°
- 180 − 92 − 58 = 30
7.Two angles on a straight line are 145° and x°. Find x.
Answer: x = 35
- Angles on a straight line add to 180°
- x = 180 − 145 = 35
8.Two angles of a triangle are 109° and 39°. Find the third angle.
Answer: 32°
- Angles in a triangle add to 180°
- 180 − 109 − 39 = 32
9.Two angles of a triangle are 30° and 90°. Find the third angle.
Answer: 60°
- Angles in a triangle add to 180°
- 180 − 30 − 90 = 60
10.Two angles on a straight line are 117° and x°. Find x.
Answer: x = 63
- Angles on a straight line add to 180°
- x = 180 − 117 = 63
Marking tips
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