There is a semi circle of diameter 36 cm, inside two semicircles are of diameter 18cm . And the between the two small semicircle a circle of radii 'r' is lie that touching the circumference of big semicircle ,then find r.
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whats the answer given ?
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Now we will find the area between two semi-circles as given below, .... Let the radius of the semicircular plot be r.
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