# Area of a Triangle

## Triangle Area Formula

Triangle Area =1/2*bh

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

# Area of a circle

## Circle Area Formula

Circle Area =πr

^{2}

*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.