Stitz-Zeager_College_Algebra_e-book

We know the length of the adjacent side is 7 and the

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Unformatted text preview: revolution.3 For instance, the measure of an angle which 2 2 represents a rotation of 3 of a revolution would measure 3 (360◦ ) = 240◦ , the measure of an angle 1 1 which constitutes only 12 of a revolution measures 12 (360◦ ) = 30◦ and an angle which indicates no rotation at all is measured as 0◦ . 240◦ 30◦ 0◦ Using our definition of degree measure, we have that 1◦ represents the measure of an angle which 1 constitutes 360 of a revolution. Even though it may be hard to draw, it is nonetheless not difficult to imagine an angle with measure smaller than 1◦ . There are two way subdivide degrees. The first, and most familiar, is decimal degrees. For example, an angle with a measure of 30.5◦ would 61 represent a rotation halfway between 30◦ and 31◦ , or equivalently, 30.5 = 720 of a full rotation. This √ 360 ◦ can be taken to the limit using Calculus so that measures like 2 make sense.4 The second way to divide degrees is the Degree - Minute - Second (DMS) system. In this system, o...
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This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

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