How do I find the area of a circlr? In the problem I'm trying to solve, the only information that is given is that sides BC and AD of the 8 by 12 rectangle located outside of the circle, are tangent to the circle.
The diameter of the circle must be 8. Therefore the radius is 4.
Use this formula:
Area = pi * radius squared.
A = 3.14 * 4^2
A = ?