radius of a circle is 5 cm , if we draw a rectangle of maximum size , what is the area of rectangle ?
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
divide(multiply(multiply(5, const_2), multiply(5, const_2)), const_2)