how to work out the area of a circle when the raduis is 5cm
\(Area = \pi {r}^{2} \)
So you do:
\(25\pi = 78.539816339744831{cm}^{2}\)
Area of a circle is pi x r^2
3.14 x (5^2) = 3.14 X 25 = 78.5 SQUARE CENTIMETERS also written as 78.5 cm^2