Question

Find the area of the shaded portion formed by a semicircle above a square.
Plz send the answer with method.

Answer 1

Hey
Here's your answer !!

The diameter of the semi circle is 7 cm ( given in the pic ) .

There fore , radius of the circle = 7/2 cm²

So area of the full circle will be = πr²
= 22/7 × 7/2 × 7/2 cm²
= 38.5 cm²

Now , area of the semi circle will be = area of full circle / 2 = 38.5 / 2 cm²
= 19.25 cm² [ Answer ] .

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Area of the shaded image is
= Area of square + area of semi circle
= ( 7 * 7 ) cm² + 19.25 cm²
= 49 cm² + 19.25 cm²
= 68.25cm² .

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Hope it helps !!

Answer 2

The diameter of semicircle is 7cm.
Radius= 7/2=3.5
Area of semicircle=πr^2/2
=> π x (3.5)^2/2
=>19.25 cm^2
Area of square=49 cm^2
Total Area=49+19.25=68.25cm^2.
Hope this will help u