What you need to know
Check yourself against these “I can” statements.
- I can find the area of a circle using A = πr² when I know the radius or diameter
- I can work backwards from the area of a circle to find its radius or diameter
- I can find the area of semicircles and quarter circles
Practise this topic
3 resourcesFormula Sheet
Make a printable formula sheet: tick the shapes you want (2D area, perimeter and arc length, volume, surface area, and sector, arc and segment in radians), the eight circle theorems with diagrams, the GCSE formulae sheet…
🧮 ToolShape Formulas
Animated visual proofs of the area, volume and surface area formulae: drag the bar (or press Play) to turn each shape step by step into one whose area or volume we already know, with a caption for each step and the formula built…
🧮 ToolVisual Proofs
Animated visual proofs of Pythagoras’ theorem, of the sums of integers, odd numbers, squares and cubes, and of key results in algebra, geometric series, trigonometry and inequalities. They play like Shape Formulas: drag the bar…
These are the pages for Area of a Circle in the Year 8 scheme of work, following Pearson Edexcel Maths Progress Delta 2. Open this topic in Mr Wells Maths to see it alongside the rest of the course.