Math ATube.com
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circle area is equale to pie
The area of a circle is the number of square units
inside that circle.

If each square in the circle to the bottom has an area
of 1 cm2, you could count the total number of
squares to get the area of the circle.
Area of a Circle
radius of a circle
A = the area
r = the radius of the circle
pi = 3.141592... or 3.14
formula for area of a circle
Formula for Area of a circle is
.
The symbol for pi ¶ which is equal to 3.14
r squared = Radius squared
The area of a circle can be found by multiplying
pi
(which is equal to 3.14) by the square of the
radius.
homepage
> Finding the Area of a Circle < you are here
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Homepage
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Using formula to find the area of a circle.
Example: If a circle has a radius of 4, then the area  
would be
Related pages
A = 3.14 x ( 4 x 4 )
= 3.14 x 16
= 50.24