Question

Find the area of a circle whose radius is 14 inches. (Use π = 3.1416.) A. 43.9824 square inches B. 615.7536 square inches C. 87.9648 inches D. 615.7536 inches

Answer 1

A=pi r^2

=3.1416 *14*14

615.7536

* your b & d choices are the same

Answer 2

The area of a circle whose radius is 14 inches is:

`615.7536\ \text{square\ inches}`

Explanation:

We know that the area of a circle or some other figure is the region which is enclosed by the circle or some other figure.

The area of a circle with given radius 'r' is given by the formula:

Area of circle=πr²

where π is a irrational number whose value we have to take as:

π = 3.1416

Here we have the radius of circle as: 14 inches.

i.e. r= 14 inches

and hence the area of circle is calculated as follows:

`Area=3.1416* (14)^2\\\\\\Area=3.1416* 196\\\\\\Area=615.7536\ \text{square\ inches}`

Hence, the correct answer is:

Option: B