Question

What is the area in terms of pi

Answer 1

C = 70π cm

A = 2,450 cm²

Explanation:

The perimeter of the given figure is equal to the circumference of whole circle.

The formula of a circumference of a circle:

`C=\pi d`

d - diameter

We have d = 70 cm. Substitute:

`C=70\pi\ cm`

The area of given figure is equal to the area of rectangle 70cm × 35cm.

(look at the picture).

The area of a rectangle:

`A=(70)(35)=2,450\ cm^2`