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Trigonometry

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Side Length Given Angle and Another Side

TRIG-LIXADG

James Gunnin Created for Albert.io. Copyright 2016. All rights reserved

Given the above right triangle, We know $\text{ angle}\:A =\theta$ is $78^{\circ}$ and the adjacent leg to that angle ($\text{ side}\: b$) is $17\text{ cm}$,

What is the measure of the hypotenuse ($\text{ side}\: c$) to the nearest tenth of a centimeter?

A

$81.8\text{ cm}$

B

$17.4\text{ cm}$

C

$3.6\text{ cm}$

D

$81.6\text{ cm}$