Question

What is the area of a circle, whose radius is `3cm.`?

Answer 1

Area of circle is `28.2744` `cm^2`

Explanation:

If `r` is the radius of a circle, its area is given by `pixxr^2`

As radius is `3cm`, area is `pixx3^2`

= `3.1416xx9=28.2744` `cm^2`