The length of a rectangle is \(\frac{2}{5}\) of the radius of a circle. The radius of the circle is equal to the side of a square whose area is 4900 m2. What is the area (in m2) of the rectangle, if its breadth is 20 m?

The length of a rectangle is \(\frac{2}{5}\) of the radius of a circ

1.	The length of a rectangle is \(\frac{2}{5}\) of the radius of a circle. The radius of the circle is equal to the side of a square whose area is 4900 m2. What is the area (in m2) of the rectangle, if its breadth is 20 m?
A.	960
B.	400
C.	560
D.	1400
Answer» D. 1400