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Area of a Triangle


         Base

           Height
__________________
=  


Triangle Area Formula

Triangle Area =

1/2*bh

Circle Area circle-area-calculator Circle Area Calculator | Easy to Use Online Calculator [[*Meta1]] [[*description]]

Area of a circle

      r

=  




Circle Area Formula

Circle Area =

πr2

*Note: Radius (r) is 1/2 the diameter of a circle. A diameter is the line through the center of the circle from one side to the other. On a plane, looking at earth, the equator would be the diameter and half the diameter would be the radius.

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