Tip
You should know the formulas for finding the area of triangles, the area of squares and rectangles, the area of trapezoids and the area of circles.
Sample Problem
If the area of a circle is (A = πr2 ), what is the area of the semicircle shown?
Answer Options
(A) 4π
(B) 8π
(C) 16π
(D) 32π
(E) 64π
View Correct Answer
(B) 8π
The area of the semicircle is (½)πr2 or (½)π(4)2 = (½)π(16) = 8π
