7th Grade Angles Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 7th Grade angles worksheet.
Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Angles7th Grade Angles Worksheet — Level 2 — Practice Set 4 — Answers
State the angle rule you use.
1.Two angles on a straight line are 31° and x°. Find x.
Answer: x = 149
- Angles on a straight line add to 180°
- x = 180 − 31 = 149
2.Two angles on a straight line are 137° and x°. Find x.
Answer: x = 43
- Angles on a straight line add to 180°
- x = 180 − 137 = 43
3.Two angles on a straight line are 114° and x°. Find x.
Answer: x = 66
- Angles on a straight line add to 180°
- x = 180 − 114 = 66
4.Two angles of a triangle are 104° and 100°. Find the third angle.
Answer: -24°
- Angles in a triangle add to 180°
- 180 − 104 − 100 = -24
5.Two angles of a triangle are 44° and 95°. Find the third angle.
Answer: 41°
- Angles in a triangle add to 180°
- 180 − 44 − 95 = 41
6.Two angles of a triangle are 82° and 46°. Find the third angle.
Answer: 52°
- Angles in a triangle add to 180°
- 180 − 82 − 46 = 52
7.Two angles of a triangle are 32° and 116°. Find the third angle.
Answer: 32°
- Angles in a triangle add to 180°
- 180 − 32 − 116 = 32
8.Two angles on a straight line are 105° and x°. Find x.
Answer: x = 75
- Angles on a straight line add to 180°
- x = 180 − 105 = 75
9.Two angles of a triangle are 104° and 117°. Find the third angle.
Answer: -41°
- Angles in a triangle add to 180°
- 180 − 104 − 117 = -41
10.Two angles on a straight line are 44° and x°. Find x.
Answer: x = 136
- Angles on a straight line add to 180°
- x = 180 − 44 = 136
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