MAT 110 Lecture Notes - Lecture 2: Central Angle, Radian
Document Summary
Provide a generalization to each of the key terms listed in this section. W hat would be the length of the arc of a circle of radius. 5 inches while subtended by a central angle of . 5 radians? s = r . 2 conversions: degrees to radians and radians to degrees. 1 revolution = 2 radians s = 2 r. Round the area of the sector of a circle with a radius of. 5 f eet f ormed by an angle of 45 by two decimal places. Think of an object that would move on a circle of the radius, r, at a constant speed. Linear speed f ormula : v = s t. Angle : radians (elasped) t ime : t t v = r . One of your classmates is spinning a rock at the end of a 3 f oot rope at a decent rate of 200 revolutions per minute (rpm) .
