area of a sector

Find the area of the sector AOB. => 3.25 π cm 2 or 3 π cm 2 or 6.75 π cm 2 or 4.5 cm 2..

Find the area of the sector POQ of the circle of radius 8 cm. => 8 cm 2 or 4 cm 2 or 8 π cm 2 or 4 π cm 2..

Find the area of a sector with radius of 5 cm and a central angle of 40°. => 8π cm 2 or 2 5 π 9 cm 2 or 5π cm 2 or 7 π 2 cm 2..

The angle of a sector is 90 degrees and the radius of the circle is 3 cm. Calculate the area of the sector. => 3 π 2 square cm or 9 π 2 square cm or 9 π 4 square cm or 3 π 4 square cm..

Find the area of a sector with a diameter of 8 m and a central angle of 90°. => 16π m 2 or 8π m 2 or 4π m 2 or 12π m 2..

The central angle of a sector is 30° and the radius of the circle is 6 cm. Find the area of the sector of the circle. => 3 π 2 square cm or 2 π 3 square cm or 3 π square cm or 6 π square cm..

O is the center of the circle. The circle is divided into three equal parts and one of them is shaded. If the radius of the circle is 12 ft, then what is the area of the shaded sector? => 46 π ft 2 or 50 π ft 2 or 48 π ft 2 or 49 π ft 2..

Find the central angle of a sector that has a perimeter k and a maximum area. => 1 2 radian or 2 radian or 1 radian or 1 4 radian..

Consider a circle with centre O and radius r. Join AB. Let the tangent at B meet OA produced at P. Draw BN perpendicular to OA. From ONB, BN = r sin q From OBP, BP = r tan q From the figure, we have Area of triangle OAB < Area of sector OAB < Ar..

. The total volume of ground water found in the aquifer is estimated to be 42.3 x 10 10 m 3 . Ground water provides soil moisture for plants and supplements for streams and lakes. It is a reserve supply of water that the agricultural sector and urban water supply sectors are tap..