Explanation Formula used: The law of sines: The law of sines for a triangle ABC is as follows. In any triangle A B C , a sin A = b sin B = c sin C . The law of sines can also be expressed as, sin A a = sin B b = sin C c . Procedure used: “The steps of finding the unknown parts of an oblique triangle, given two angles and a side are: 1. First find the third angle of the triangle by adding the two known angles and subtracting the sum from 180 ° or 2 π radians . 2. Set up a ratio with the given side and sine of the opposite angle. 3. Set up a second ratio with an unknown side and the sine of the opposite angle. 4. Form a proportion using the ratios in Step 2 and 3 and solve the proportion for the unknown side. 5. Repeat Steps 2-4 if the value of the third side is needed.” Calculation: Given that, the known parts of oblique triangle are, a = 14 in . , B = 72 ° , C = 60 ° . In order to find ∠ A , substitute B = 72 ° and C = 60 ° in A + B + C = 180 °

MML F/COLLEGE MAT F/TRADES - ACCESS CODE

10th Edition

ISBN: 9781323845967

Author: Hobbs

Publisher: PEARSON

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Chapter 20.4, Problem 7E

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The value of b of the oblique triangle in which a=14 in., B=72°,C=60°.

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Chapter 20.4, Problem 6E

Chapter 20.4, Problem 8E

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Chapter 20 Solutions

MML F/COLLEGE MAT F/TRADES - ACCESS CODE

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The value of b of the oblique triangle in which a = 14 in . , B = 72 ° , C = 60 ° .

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The value of b of the oblique triangle in which a=14 in., B=72°,C=60°.

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Chapter 20 Solutions