# Area of a Sector

## Definition of Sector of a Circle

A

**sector of a circle**is the region between two radii and an arc of the circle.## What is the AREA of the given circle (r = 4 cm) in terms of pi?

Rounded to the nearest hundredth of a centimeter, the circle's FULL area is 50.27 square centimeters.

## Since we can calculate the FULL area of any circle, we can easily compute a sector's area too.

The **area of the sector** of a circle is simply a ______________ of the full circle's area.