PQRS is a diameter of a circle of radius 6cm. The lengths PQ,QR and RS are  equal
Channel: Doubtnut
Date: 19/04/2020

PQRS is a diameter of a circle of radius 6cm. The lengths PQ,QR and RS are  equal. Semicircles are drawn with PQ and QS is diameters, as shown in the given figure. If `PS=12cm,` find the perimeter and area of the shaded region.