5th Grade Angles Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 5th Grade angles worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Angles5th Grade Angles Worksheet — Level 2 — Answers
State the angle rule you use.
1.Two angles on a straight line are 108° and x°. Find x.
Answer: x = 72
- Angles on a straight line add to 180°
- x = 180 − 108 = 72
2.Two angles on a straight line are 64° and x°. Find x.
Answer: x = 116
- Angles on a straight line add to 180°
- x = 180 − 64 = 116
3.Two angles on a straight line are 20° and x°. Find x.
Answer: x = 160
- Angles on a straight line add to 180°
- x = 180 − 20 = 160
4.Two angles of a triangle are 103° and 37°. Find the third angle.
Answer: 40°
- Angles in a triangle add to 180°
- 180 − 103 − 37 = 40
5.Two angles on a straight line are 82° and x°. Find x.
Answer: x = 98
- Angles on a straight line add to 180°
- x = 180 − 82 = 98
6.Two angles on a straight line are 159° and x°. Find x.
Answer: x = 21
- Angles on a straight line add to 180°
- x = 180 − 159 = 21
7.Two angles of a triangle are 54° and 119°. Find the third angle.
Answer: 7°
- Angles in a triangle add to 180°
- 180 − 54 − 119 = 7
8.Two angles on a straight line are 110° and x°. Find x.
Answer: x = 70
- Angles on a straight line add to 180°
- x = 180 − 110 = 70
9.Two angles of a triangle are 84° and 100°. Find the third angle.
Answer: -4°
- Angles in a triangle add to 180°
- 180 − 84 − 100 = -4
10.Two angles on a straight line are 38° and x°. Find x.
Answer: x = 142
- Angles on a straight line add to 180°
- x = 180 − 38 = 142
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