Question

What will be the area of a circular button of radius 7 CM?

Answer 1

ans is 154

steps are done as follows

Answer 2

Given:

The radius of the button=7cm

To find:

The area of the circular button

Solution:

The area of the circular button is 154 $cm^{2}$.

We can find the solution or the area by following the given steps-

We know that the area can be calculated by squaring the radius of the circular button and multiplying it by pi.

The area of a circular button=π$r^{2}$ (where r is given as the radius)

We know that the radius of the button, r is given as 7cm.

Putting the value of the r in the formula, we get

Area of button=π×7×7

Using the value of π as 22/7,

So, the area of the button=22×7×7/7

=22×7

=154 $cm^{2}$

Thus, the area of the button is 154 $cm^{2}$.