If X and Y are the centres of two identical circles of radius 7 cm and AB = 3 cm, what is the area of the rectangle PQRS (in cm2)?
Area of a rectangle and the area of a circle are equal. If dimensions of the rectangle are 14cm×11cm, then radius of the circle is :
From a circular card sheet of radius 14 cm two circles of radius 3.5 cm and a rectangle of length 3 cm and breadth 1 cm are removed (as shown in the following figure). Find the area of the remaining sheet. (Take π=227)
Find the area of the shaded region (in cm2) as shown in figure of the two concentric circles with centre O and radius 7 cm and 14 cm respectively. Given ∠AOC = 40∘. (use π = 227)