5th Grade Angles Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 5th Grade angles worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Angles5th Grade Angles Worksheet — Level 3 — Practice Set 2 — Answers
State the angle rule you use.
1.Two angles of a triangle are 31° and 101°. Find the third angle.
Answer: 48°
- Angles in a triangle add to 180°
- 180 − 31 − 101 = 48
2.Three angles meet at a point: 81°, 95° and x°. Find x.
Answer: x = 184
- Angles at a point add to 360°
- x = 360 − 81 − 95 = 184
3.An isosceles triangle has an apex angle of 64°. Find each base angle.
Answer: 58°
- Base angles are equal: (180 − 64) ÷ 2
- = 116 ÷ 2 = 58
4.Three angles meet at a point: 52°, 49° and x°. Find x.
Answer: x = 259
- Angles at a point add to 360°
- x = 360 − 52 − 49 = 259
5.Three angles meet at a point: 64°, 79° and x°. Find x.
Answer: x = 217
- Angles at a point add to 360°
- x = 360 − 64 − 79 = 217
6.An isosceles triangle has an apex angle of 44°. Find each base angle.
Answer: 68°
- Base angles are equal: (180 − 44) ÷ 2
- = 136 ÷ 2 = 68
7.An isosceles triangle has an apex angle of 68°. Find each base angle.
Answer: 56°
- Base angles are equal: (180 − 68) ÷ 2
- = 112 ÷ 2 = 56
8.Three angles meet at a point: 78°, 45° and x°. Find x.
Answer: x = 237
- Angles at a point add to 360°
- x = 360 − 78 − 45 = 237
9.Three angles meet at a point: 58°, 96° and x°. Find x.
Answer: x = 206
- Angles at a point add to 360°
- x = 360 − 58 − 96 = 206
10.Two angles on a straight line are 80° and x°. Find x.
Answer: x = 100
- Angles on a straight line add to 180°
- x = 180 − 80 = 100
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