SOLUTION: Find the area of a semi circle if r=3cm. Leave answer in terms of pi

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Question 1056326: Find the area of a semi circle if r=3cm. Leave answer in terms of pi
Answer by Theo(13342) About Me  (Show Source):
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the area of a circle is equal to r^2 * pi.

if the radius is 3 cm, ten the area of the circle would be equal to 9 * pi cm.

the area of a semi-circle with that same radius would be half of that which would makes it 4.5 * pi cm.