Question

A circle has a circumference of 14 ft. Its area is halved. Describe the effect on the circumference of the circle.

Answer 1

first find radius

2 pi r=14 r=7/Pi

plug that into area formula

pi (7/pi)^2= 49/Pi

then half that and see what happens to radious

49/pi*.5=pi r^2 sfr 4.949747468/Pi


now plug it back into circumference

2*pi*(4.949747468/Pi)= 9.899494936

so original is 14 when you half the area you get 9.899

14/9.899=1.414 shrinkage

Answer 2

Thanks so much!

Answer 3

de nada :)