Answered: Andrew isn't sure which trigonometric…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.4: Complex Numbers

Problem 51E

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Andrew isn't sure which trigonometric relationship to use, but remembers something about special right triangles from another class. Andrew's work is shown below. Alex reviews Andrew's work and disagrees. Identify where Andrew made a mistake and explain how to correct it.

xV2 183.85 ft
*= 136 ft
rV33112.58 ft
x = 65 ft
45°
30*
x - 130 ft
2x%3D
2x=130 ft

Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).

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