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Classify angles including reflex angles.

Classify angles including reflex angles

Numihana · England Year 5

Classify angles including reflex angles

Practice sheet

Name: ______________
Date: ______________

Classify angles including reflex angles

1

Classify an angle of 180°.

Answer: acute / right / obtuse / straight / reflex
2

Classify an angle of 10°.

Answer: acute / right / obtuse / straight / reflex
3

Classify an angle of 300°.

Answer: acute / right / obtuse / straight / reflex
4

Classify an angle of 270°.

Answer: acute / right / obtuse / straight / reflex
5

Classify an angle of 50°.

Answer: acute / right / obtuse / straight / reflex
6

Classify an angle of 30°.

Answer: acute / right / obtuse / straight / reflex
Numihana · England Year 5 · Classify angles including reflex angles
Numihana · England Year 5

Classify angles including reflex angles

Answer key

Name: ______________
Date: ______________

Classify angles including reflex angles

1

Classify an angle of 180°.

Answer: straight
2

Classify an angle of 10°.

Answer: acute
3

Classify an angle of 300°.

Answer: reflex
4

Classify an angle of 270°.

Answer: reflex
5

Classify an angle of 50°.

Answer: acute
6

Classify an angle of 30°.

Answer: acute
Numihana · England Year 5 · Classify angles including reflex angles

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The skill behind this activity

Classify angles including reflex angles

Department for Education: mathematics programmes of study ↗

Year 5 → Geometry → Properties of shapes · Selected statutory skill. Pack 2.2.0 · source checked 2026-10-12.

For teachers and parents

Compare the labelled angle with 90 and 180 degrees. Acute is less than 90, obtuse is between 90 and 180, and reflex is between 180 and 360.

A common slip

An obtuse angle is smaller than a half-turn; a reflex angle is larger.

Curriculum coverage

Worked example

Classify an angle of 200°.

Answer: reflex

Compare the labelled angle with 90 and 180 degrees. Acute is less than 90, obtuse is between 90 and 180, and reflex is between 180 and 360.