Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator. cos (π/6) = ___?___

Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator. cos (π/6) = _?_

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.1: Equations

Problem 69E

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Question

Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator.

cos (π/6) = ___?___

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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