MathsYears 4–5Geometry - Properties of Shapes

Angles: acute, obtuse and right angles

Identify acute and obtuse angles; compare and order angles up to 2 right angles

What you'll learn

  1. 1

    Imagine opening a book flat — that's a right angle, like an L shape! 📖

  2. 2

    Which shape looks like a right angle? 🔲

  3. 3

    Drag the protractor to measure this angle — is it a right angle? 📏

  4. 4

    Let's check if this angle is acute, right or obtuse.

  5. 5

    Measure this angle — is it acute, right or obtuse? 🔍

  6. 6

    An obtuse angle is bigger than a right angle. Which of these is obtuse? 🧩

  7. 7

    Which angle is ACUTE? 🧐

Practise Angles: acute, obtuse and right angles with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 8–10. Aligned to the UK National Curriculum.