Question

What is the approximate area of a circle whose diameter is 12 cm?

Use 3.14 forππ .

Question 1 options:

452.16


113.04


37.68


18.84

Answer 1

In this question , we have to use the formula of area of circle , which is

`Area = \pi r^2`

Where r is the radius .

In the question we have diameter=12 cm, and radius is half of diameter.

So radius =6 cm .

Substituting the value of r and using pi =3.14, we will get

`Area= 3.14*6^2 = 3.14*36 = 113.04cm^2`

So the correct option is the second option .