Find the exact circumference of a circle with the given radius.

7 feet

C =

7π ft.
14π ft.
27π ft.

Question

Find the exact circumference of a circle with the given radius.

7 feet

C =

7π ft.
14π ft.
27π ft.

anonymous · Answer

$$C=2piR$$

anonymous · Answer

don't count and round pi, leave it as variable.
2pi*7 feet=14pi feet

kva1992 · Answer

formula for the circumference is C=Dπ
so all you do is get the diameter from the radius thus it would be 
14πft

anonymous · Answer

is 2pi ...3.14*2? and multiplied by c?

anonymous · Answer

pi is not multiplied - leave it as variable - this way you will get exact answer.
2pi is multiplied by radius.

kva1992 · Answer

in order to find the circumference you multiply Diameter times π
and in order to get the diameter you double the radius

anonymous · Answer

oh so its 14pi?

kva1992 · Answer

correct

anonymous · Answer

yes it is

anonymous · Answer

wow thnx so much :)