If circles x and y have the same area and circle x has a circumference of 14π, half of the radius of circle y is:  Choose the correct choice
A) 16	B) 8	C) 4	D) 3.5	E) 1
x be radius of circle x   y be radius of circle y   given:   pi*x^2 = pi*y^2   also,   2*pi*x = 14*pi   x =7   thus y =7   y/2 = 3.5   Ans: 3.5
<result>D</result>
If circles x and y have the same area and circle x has a circumference of 14π, half of the radius of circle y is: