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Year 5 Angles Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 5 angles worksheet.

Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Angles

Year 5 Angles Worksheet — Level 1 — Practice Set 3 — Answers

State the angle rule you use.

1.Classify an angle of 224°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

2.Classify an angle of 190°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

3.Classify an angle of 87°.

Answer: acute

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

4.Classify an angle of 23°.

Answer: acute

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

5.Classify an angle of 248°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

6.Classify an angle of 323°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

7.Classify an angle of 39°.

Answer: acute

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

8.Classify an angle of 315°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

9.Classify an angle of 151°.

Answer: obtuse

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

10.Classify an angle of 240°.

Answer: reflex

Acute < 90°, right = 90°, obtuse between 90° and 180°, straight = 180°, reflex > 180°.

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