Question

What is the area of a circle in 13mm?

Answer 1

You can calculate the area of a circle with this formula:

A=pi*r^2


The only thing you need to do is insert the radius:

A=pi*13^2
A= 530.93mm or 0.53m

Answer 2

Answer: 132.7

Explanation:

13 /2 because diameter is the radius times 2

6.5 squared times pie Is 132.7