radius of a circle is 5cm , if we draw a rectangle of maximum size, what is the area of rectangle?
Choose the correct choice from the following.
A) 30	B) 40	C) 50	D) 60	E) 70

Rationale: area of rectangle of max size inside circle will be a square with diagonal equal to 10 cms . then side of square = root ( 100 / 2 ) = root 50 area of square = root 50 * root 50 = 50 sq cms . answer : c
Answer: C