Angles (Year 6)
Identify, compare and measure acute, right, obtuse and reflex angles.
The questions below are generated to match the National Curriculum for Year 6 and get harder as you progress from Rookie to Guru.
Worked examples
RookieRead and interpret directly.
Triangle angle sum?
- 180°
- 360°
- 90°
- 270°
Answer: 180°. Triangle interior angles sum to 180°.
ProCompare and infer.
Isosceles triangle: two equal sides. If apex is 80°, what are the BASE angles?
- 50° each
- 40° each
- 100° each
- 80° each
Answer: 50° each. Base angles equal. (180 − 80)/2 = 50°.
GuruMulti-step reasoning.
A teacher marks 'triangle angles 70°, 40°, 70°' wrong. Why?
- Pupil is CORRECT — sum is 180°.
- Should be 90°.
- Should be 120°.
- Should be 60°.
Answer: Pupil is CORRECT — sum is 180°.. 70 + 40 + 70 = 180.
Related skills
Frequently asked questions
- What is angles?
- Identify, compare and measure acute, right, obtuse and reflex angles.
- How can my child practise angles at home?
- Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.
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