6th Grade Angles Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 6th Grade angles worksheet.
6th Grade Angles Worksheet — Level 3 — Practice Set 2 — Answers
State the angle rule you use.
1.Three angles meet at a point: 88°, 104° and x°. Find x.
Answer: x = 168
- Angles at a point add to 360°
- x = 360 − 88 − 104 = 168
2.An isosceles triangle has an apex angle of 62°. Find each base angle.
Answer: 59°
- Base angles are equal: (180 − 62) ÷ 2
- = 118 ÷ 2 = 59
3.Two angles on a straight line are 49° and x°. Find x.
Answer: x = 131
- Angles on a straight line add to 180°
- x = 180 − 49 = 131
4.Two angles on a straight line are 157° and x°. Find x.
Answer: x = 23
- Angles on a straight line add to 180°
- x = 180 − 157 = 23
5.Three angles meet at a point: 145°, 97° and x°. Find x.
Answer: x = 118
- Angles at a point add to 360°
- x = 360 − 145 − 97 = 118
6.Three angles meet at a point: 134°, 85° and x°. Find x.
Answer: x = 141
- Angles at a point add to 360°
- x = 360 − 134 − 85 = 141
7.Two angles of a triangle are 120° and 28°. Find the third angle.
Answer: 32°
- Angles in a triangle add to 180°
- 180 − 120 − 28 = 32
8.An isosceles triangle has an apex angle of 38°. Find each base angle.
Answer: 71°
- Base angles are equal: (180 − 38) ÷ 2
- = 142 ÷ 2 = 71
9.Two angles of a triangle are 24° and 29°. Find the third angle.
Answer: 127°
- Angles in a triangle add to 180°
- 180 − 24 − 29 = 127
10.An isosceles triangle has an apex angle of 58°. Find each base angle.
Answer: 61°
- Base angles are equal: (180 − 58) ÷ 2
- = 122 ÷ 2 = 61
Marking tips
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