What is the area of this circle?

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1 Answer
Aviv S.
Feb 17, 2018

The area is about #~~132.73"cm"^2#.

Explanation:

We know that the diameter of a circle is twice as long as its radius, so the radius is #13/2"cm"# or #6.5"cm"#

We also know that the formula for the area of a circle is #pir^2#, so now we can plug in our numbers:

#color(white)=> pir^2#

#=>pi*(6.5"cm")^2#

#=pi*42.25"cm"^2#

#~~132.73"cm"^2#

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