Answer:
Exact area = 24+8pi square cm
Approximate area = 49.1327412287183 square cm
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Explanation:
The semicircle portion has area of 0.5*pi*r^2 = 0.5*pi*4^2 = 8pi
The largest triangle has an area of 0.5*b*h = 0.5*8*6 = 24
The total exact area is therefore 24+8pi and this is approximately equal to 49.1327412287183 after using a calculator.
