Question

The radius of a circle is 1 kilometer. What is the area?Give the exact answer in simplest form.____ square kilometers

Answer 1

Ok, so;

Let me draw the figure here below:

We know that the area of a circle can be found using the next equation:

Area = πr².

Where r is the radius and π is a number.

So, the area of this circle, will be:

Area = π(1km)²

Area = π km²