Question

To the nearest hundredth what is the area of a circle with a radius of 4 units

Answer 1

50.27 is the answer because you multiply pie witch is 3.14 by the radius 4 and square it and that gives you 50.27 

Answer 2

The equation for finding the area of a circle of A=pi(r^2). Just plug in r=4 to find the area:

A=pi(4^2)
A=16pi
A=50.27 units squared