The diagonals of two squares are in the ratio of 2 : 5. Find the ratio of their areas. Choices:
A) 5:25	B) 4:25	C) 3:15	D) 7:15	E) 6:15
Let the diagonals of the squares be 2x and 5x respectively.   Ratio of their areas = (1/2)*(2x) 2:(1/2)*(5x) 2   = 4x2: 25x2   = 4 : 25.   ANSWER 4:25 4:25
<result>B</result>
The diagonals of two squares are in the ratio of 2 : 5. Find the ratio of their areas.