The area of rectangular field of length 90 meters and breadth 80 meters is equal to the area of a square plot. What will be the length of the diagonal of the square plot?	Choose the correct choice from the following:  A) 100 m  B) 120 m  C) 95 m  D) 80 m  E) 150 m

Rationale: given that the length of the rectangular field l = 90 m and breadth = b = 80 m . then its area lb = 90 x 80 sq . m we know that the area of square = ( 1 / 2 ) x ( diagonal ) 2 from the given question , we have area of square plot = area of rectangular field that is , 90 x 80 = 1 / 2 x diagonal 2 diagonal ^ 2 = 2 x 7200 = 14400 = ( 120 ) 2 diagonal = 120 m . hence b
Answer: B