The area of a circle is 1 539 cm2 and the arc length of a sector is 36 cm. Find the area of the sector giving the answer to the nearest square centimeter.
A circle has a radius of 4 cm and a segment has a central angle of 5.1 rad. Find the area of the segment giving the answer to two decimal places.
A circle has a radius of 42 cm, where and are two radii in the circle, and . Determine the area of the circular sector to the nearest square centimetre.