Question

Find the area of the semicircle.

Either enter an exact answer in terms of
or use 3.14 for and enter your answer as a decimal.
units

Answer 1

8pi

Explanation:

A=pi*r^2

A=pi(4^2)

A=16pi

16pi would be the area if the circle was complete, but since this is a semicircle you just have to divide by two which would give us:

A=8pi

Answer 2

8 pie

Explanation:

area of a circle is pie(radius squared)

radius is 4

4 squared is 16

divide by two because its a semi circle