6th Grade Angles Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 6th Grade angles worksheet.
Success TutoringWorksheetsAnswer sheet6th Grade · Mathematics · Angles6th Grade Angles Worksheet — Level 2 — Practice Set 3 — Answers
State the angle rule you use.
1.Two angles of a triangle are 67° and 23°. Find the third angle.
Answer: 90°
- Angles in a triangle add to 180°
- 180 − 67 − 23 = 90
2.Two angles on a straight line are 99° and x°. Find x.
Answer: x = 81
- Angles on a straight line add to 180°
- x = 180 − 99 = 81
3.Two angles of a triangle are 107° and 60°. Find the third angle.
Answer: 13°
- Angles in a triangle add to 180°
- 180 − 107 − 60 = 13
4.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
5.Two angles of a triangle are 62° and 99°. Find the third angle.
Answer: 19°
- Angles in a triangle add to 180°
- 180 − 62 − 99 = 19
6.Two angles on a straight line are 63° and x°. Find x.
Answer: x = 117
- Angles on a straight line add to 180°
- x = 180 − 63 = 117
7.Two angles of a triangle are 20° and 92°. Find the third angle.
Answer: 68°
- Angles in a triangle add to 180°
- 180 − 20 − 92 = 68
8.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
9.Two angles of a triangle are 52° and 78°. Find the third angle.
Answer: 50°
- Angles in a triangle add to 180°
- 180 − 52 − 78 = 50
10.Two angles of a triangle are 105° and 47°. Find the third angle.
Answer: 28°
- Angles in a triangle add to 180°
- 180 − 105 − 47 = 28
Marking tips
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