the diagram shows a semicircular metal piece of diameter 14m From it two semi circular pieces of radius 3.5m each are removed as shown below. Calculate the area of the remaining portion
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first and formula of area of semi circle is 1/2 πr2 (π=22/7) . So firstly calculate the area of full semi circle.
And then find out area of one circle of radius 3.5/2 .
and subtract 1 one area with 2one area.
And then find out area of one circle of radius 3.5/2 .
and subtract 1 one area with 2one area.
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