MATH 1022 Chapter : Section 6 2
Document Summary
Objective 1: determining the area of a sector of a circle. A sector of a circle is a portion of a circle bounded by two radii and an arc of the circle. For a circle of radius r, and central angle of radians, the area, a, of a sector of a circle is given by. The formula for the area of a sector of a circle, 2 r is only valid if the angle is in radians. An angle given in degrees must first be converted to into radians. 1: find the area of a sector of a circle of radius 40 feet and = 1/8 radian. 2: a farmer used a sprinkler that pivots about the center of a circular field. Determine the length of the sprinkler if an area of 3240 square feet is watered after a pivot of 40 . Objective 2: computing the arc length of a sector of a circle.
