What is the area in terms of pi

Question

asked Feb 19, 2020 113k views

1 Answer

Artemiygrn · Answer 1 · 2020-02-23T10:00:53+0000

Answer:

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:

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