If circles x and y have the same area and circle x has a circumference of 12π, half of the radius of circle y is:
Pick one
A) 16  B) 8  C) 3  D) 2  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 = 12*pi   x = 6   thus y =6   y/2 = 3   Ans: 3
<result>C</result>
If circles x and y have the same area and circle x has a circumference of 12π, half of the radius of circle y is: