Basic Math Examples

Find the Area circle (1.4)
r=1.4
Step 1
The area of a circle is equal to Pi π times the radius r squared.
π(radius)2
Step 2
Substitute in the value of the radius r=1.4 into the formula for the area of a circle. Pi π is approximately equal to 3.14.
π1.42
Step 3
Raise 1.4 to the power of 2.
π1.96
Step 4
Multiply π by 1.96.
6.1575216
 x2  12  π  xdx