If e is the radian measure of a central angle of a circle and r is the radius of the circle, which is the correct derivation of the area, A, of the sector bounded by the sides of the central angle and the arc it subtends? A so A = er 2n 2nr so A = 2n %3D So A = 360° 180° A So A = 360° 360°
If e is the radian measure of a central angle of a circle and r is the radius of the circle, which is the correct derivation of the area, A, of the sector bounded by the sides of the central angle and the arc it subtends? A so A = er 2n 2nr so A = 2n %3D So A = 360° 180° A So A = 360° 360°
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Transcribed Image Text:If e is the radian measure of a central angle of a circle and r is the radius of the circle, which is the correct derivation of the area, A, of the sector
bounded by the sides of the central angle and the arc it subtends?
A
so A = er
2n
2nr
so A =
2n
%3D
So A =
%3D
360°
180°
A
So A =
360°
360°
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