A semi-circle sits on top of a rectangle to form the figure below. Find its area and perimeter. Use 3.14 for.

The rectangle is 4 inches long and 4 inches wide. The semi-circle sits on top of the rectangle on a side that is 4 inches long.

For perimeter, find the of the semi-circle and add it to three lengths of the rectangle (one side of the rectangle is not exposed because of the semi circle).

P = πd/2 + 4 + 4 + 4

= π (4) / 2 + 4 + 4 + 4

= 12.56/2 + 4 + 4 + 4

= 6.28 + 4 + 4 + 4

= 18.28in

Therefore, the perimeter is 18.28in.

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For area, calculate the areas of both shapes separately then add them together.

A1 = πr^2

= π (2) ^2

= π (4)

= 12.56in2

A2 = lw

= (4) (4)

= 16in2

A = A1 + A2

= 12.56 + 16

= 28.56in2

Therefore, the area is 28.56in2 (inches squared).