Answer:
9/2 pi
Step-by-step explanation:
The formula for the area of a circle is [tex]\pi r^2[/tex]. Since a semicircle is just half of a circle, the formula for its area is [tex]\frac{1}{2}\pi r^2[/tex]. Plugging in 3 for r, we get:
[tex]A= \frac{1}{2}\pi \cdot (3)^2 = \frac{9}{2}\pi[/tex]
