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Area of circles
Understand why the area of a circle is πr² and use it for circles, semicircles and quadrants, giving exact or rounded answers.
⏱ 18 min❓ 9 questions
What you'll be able to do
- ✔I can explain why the area of a circle is πr²
- ✔I can find the area of circles, semicircles and quadrants exactly or rounded
- ✔I can find the radius of a circle from its area
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
9 questions and 1 quick teaching card, including:
- 🔘Multiple choice — Tap the answer you think is best, then check it.
- 🔢Number answer — Work out the answer and type the number.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
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Curriculum: AC9M8M03