What is the area of a circle with a radius of 3 cm?

1 Answer
Kayla
Dec 26, 2016

#Area = 28.27cm^2#

Explanation:

The area of a circle can be obtained by using the equation below:

![http://www.mathcaptain.com/geometry/http://area-of-a-circle.html](https://useruploads.socratic.org/VzpvDfwpQkSg4FnBAkbG_area-of-a-circle.PNG)

where the mathematical constant, #pi#, has a value of approximately 3.14 and #r# represents the radius of the circle.

All we have to do is square the given radius and multiply that value by #pi# to figure out the area:

#Area = (3cm)^2 xx pi#
#Area = 28.27cm^2#

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