Question

The circle above has a radius of 7 cm. What is the area of the circle?

Use = 3.14.
43.96 cm2
153.86 cm2
21.98 cm2
307.72 cm2

Answer 1

`A=\pi r^2`
A - area, r - radius


`r=7 \ [cm] \\ \pi \approx 3.14 \\ \\ A=3.14 * 7^2=3.14 * 49=153.86 \ [cm^2]`

The area is 153.86 cm².