Question

The radius of a circle is 10 cm. What is the approximate area of the circle? What is the exact area of the circle? Show your work.

Answer 1

First let's review the area formula for a circle.

Area=π$r^2$

Now that we know the radius, r is 10. The area is

10*10*π=100π

I will approximate π to 3.14 although you could do it more precise or less precise. The final answer will be 100*3.14=314 squared centimeter.

Any question you have about this just ask in the comment of this answer :)