How to find the area of a sector

The sector area is = pi * r^2 (circumference/360). Do the work inside the () first and then multiply by pi r^2

If the central angle measures 60 degrees, divide the 360 total degrees in the circle by 60. Multiply this by the measure of the corresponding arc to find the total circumference of the circle. Use the circumference to find the radius, then use the radius to find the area.