SOLUTION: Which of the following represents the ratio of the area of the circle to its circumference? (1) 2:r (3) 1:2r (2) r2:4 (4) r:2

Algebra ->  Surface-area -> SOLUTION: Which of the following represents the ratio of the area of the circle to its circumference? (1) 2:r (3) 1:2r (2) r2:4 (4) r:2      Log On


   



Question 253324: Which of the following represents the ratio of the area of the circle to its circumference?
(1) 2:r (3) 1:2r
(2) r2:4 (4) r:2

Found 2 solutions by Alan3354, richwmiller:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A = pi*r^2
C = 2pir
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pi*r^2/2pir = r/2
r:2

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
area=pi*r^2
circumference=2*pi*r
pi*r^2/2*pi*r=r/2=r:2