Area of a Sector

The area of a sector of a circle is part of the total area of the circle. Area of a Sector =

A circle has a radius of 10 cm. Find the area of a sector with central angle 60

A circle has a radius of 15 in. Find the area of a sector with central angle 45

A circle has a radius of 32 mm. Find the area of a sector with central angle 100