an algebraic expression that gives the area of a circle with a circumference ?

Hint: The circumference of a circle with radius R is 2piR , and its area is piR^2

Question

an algebraic expression that gives the area of a circle with a circumference ?

Hint: The circumference of a circle with radius R is  2piR , and its area is piR^2

anonymous · Answer

Are you looking for the area of an arc or something?

anonymous · Answer

u want to express area in term of circumference?

anonymous · Answer

C =2piR so C/2Pi =r 
substituate and pi(C/2pi)^2

anonymous · Answer

yea, they just want you to make up a formula that you could use that has both of these equations in it

anonymous · Answer

C=2*pi*r -> pi*r= C/2
then plug in it into the equation for area