GCSE Maths Practice: perimeter-and-area

Question 8 of 10

This question tests knowledge of the circle area formula.

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\( \begin{array}{l}\text{Which formula gives the area of a circle?}\end{array} \)

Choose one option:

Identify radius, square it, multiply by π.

The area of a circle is calculated using A = πr². Here r is the radius. Understanding this formula is fundamental for all circle area calculations. Practice identifying radius and applying the square and multiplication by π. Real-world applications include circular gardens, wheels, and pipes. Remember, circumference uses a different formula, so don’t confuse the two.