Year 8 Angles Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 8 angles worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · AnglesYear 8 Angles Worksheet — Level 2 — Answers
State the angle rule you use.
1.Two angles of a triangle are 106° and 68°. Find the third angle.
Answer: 6°
- Angles in a triangle add to 180°
- 180 − 106 − 68 = 6
2.Two angles of a triangle are 52° and 103°. Find the third angle.
Answer: 25°
- Angles in a triangle add to 180°
- 180 − 52 − 103 = 25
3.Two angles on a straight line are 71° and x°. Find x.
Answer: x = 109
- Angles on a straight line add to 180°
- x = 180 − 71 = 109
4.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
5.Two angles on a straight line are 109° and x°. Find x.
Answer: x = 71
- Angles on a straight line add to 180°
- x = 180 − 109 = 71
6.Two angles on a straight line are 75° and x°. Find x.
Answer: x = 105
- Angles on a straight line add to 180°
- x = 180 − 75 = 105
7.Two angles of a triangle are 78° and 88°. Find the third angle.
Answer: 14°
- Angles in a triangle add to 180°
- 180 − 78 − 88 = 14
8.Two angles of a triangle are 34° and 45°. Find the third angle.
Answer: 101°
- Angles in a triangle add to 180°
- 180 − 34 − 45 = 101
9.Two angles on a straight line are 122° and x°. Find x.
Answer: x = 58
- Angles on a straight line add to 180°
- x = 180 − 122 = 58
10.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
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