Question

If a circle has a circumference of 14 cm, then what is the radius of the circle?

A. 7 cm
B. 7 cm
C. 2 cm
D. 14 cm

Answer 1

circumference = 2*pi*r^2

Answer 2

solve for r by dividing by 2pi first... So 14/2pi = 2.228

Answer 3

Now we know r^2=2.228 then you need to take the square root of 2.228 which is around 1.493

Answer 4

And that's your radius

Answer 5

would it be horrible to say I dont understand? ;~;

Answer 6

circum =2pir .. 14=2pir ... divide both sides by 2pi ..