12. The figure below is made up of a semicircle, 2 isosceles triangles and a square. If the area of each isosceles triangle is 32 cm2, find the area of the semicircle. (Take π = 3.14)
32 x 2 = 64
64 = 8 x 8
8 x 3 = 24
24 ÷ 2 = 12
1/2 x 3.14 x 12 x 12 = 226.08 cm2
The area of the semicircle is 226.08 cm2.
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