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Question

Diameter of the circle is $14 c m$ . Calculate the area of the shaded semicircle. Use $π = \frac{22}{7}$

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Solution

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Area of the semicircle $= \frac{1}{2} π r^{2}$
Diameter $= 14$
radius $= \frac{14}{2} = 7$
Area $= \frac{1}{2} \times \frac{22}{7} \times 7^{2}$
$= 77$ $c m^{2}$

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