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 59° and 61°. Find the third angle.
Answer: 60°
- Angles in a triangle add to 180°
- 180 − 59 − 61 = 60
2.Two angles on a straight line are 124° and x°. Find x.
Answer: x = 56
- Angles on a straight line add to 180°
- x = 180 − 124 = 56
3.Two angles of a triangle are 74° and 74°. Find the third angle.
Answer: 32°
- Angles in a triangle add to 180°
- 180 − 74 − 74 = 32
4.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
5.Two angles of a triangle are 63° and 90°. Find the third angle.
Answer: 27°
- Angles in a triangle add to 180°
- 180 − 63 − 90 = 27
6.Two angles of a triangle are 37° and 56°. Find the third angle.
Answer: 87°
- Angles in a triangle add to 180°
- 180 − 37 − 56 = 87
7.Two angles on a straight line are 154° and x°. Find x.
Answer: x = 26
- Angles on a straight line add to 180°
- x = 180 − 154 = 26
8.Two angles of a triangle are 51° and 86°. Find the third angle.
Answer: 43°
- Angles in a triangle add to 180°
- 180 − 51 − 86 = 43
9.Two angles of a triangle are 68° and 35°. Find the third angle.
Answer: 77°
- Angles in a triangle add to 180°
- 180 − 68 − 35 = 77
10.Two angles on a straight line are 142° and x°. Find x.
Answer: x = 38
- Angles on a straight line add to 180°
- x = 180 − 142 = 38
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