The area of the circle is π(4)^2 = 16π.
96 . Area of a Sector
A sector is a piece of the area of a circle. If n is the degree measure of the
sector’s central angle, then the formula is
In the figure above, the radius has a length of 6, and the measure of the
sector’s central angle is 30 degrees. The sector has of the area
of the circle: