r=2cm
The area of a circle is equal to Pi π times the radius r squared.
π⋅(radius)2
Substitute in the value of the radius r=2 into the formula for the area of a circle. Pi π is approximately equal to 3.14.
π⋅22
Raise 2 to the power of 2.
π⋅4
Move 4 to the left of π.
4π(cm)2
Find the Area circle (2cm)