Area of a circle
The formula to calculate the area of a circle is: \(\text{area of a circle} = \pi r^2\)
Example
Calculate the area of the clock face. Give your answer to one decimal place.
\(\text{Area} = \pi \times 8^2\)
Remember to use This is the order in which arithmetic operations must be carried out. Brackets - Of - Divide - Multiply - Add - Subtract.. The radius must be squared first before multiplying by \(\pi\).
Area = 201.1 cm2
