SOLUTION: The area of a circle can be found by multiplying the number pi by the square of the radius. If the radius of a circle is r, write an expression that presents the area of the circ

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Question 1043650: The area of a circle can be found by multiplying the number pi by the square of the radius.
If the radius of a circle is r, write an expression that presents the area of the circle.

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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The area of a circle can be found by multiplying the number pi by the square of the radius.
If the radius of a circle is r, write an expression that presents the area of the circle.
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The area of a circle 

S = pi%2AR%5E2,

where R is the radius of the circle.

See the lesson
    - Area of a circle
in this site.

Also, you have free of charge online textbook in Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.