Explanation Result used: “The laws of Cosines are, a 2 = b 2 + c 2 − 2 b c cos A b 2 = c 2 + a 2 − 2 c a cos B c 2 = a 2 + b 2 − 2 a b cos C .” “The laws of Sines are, sin A a = sin B b = sin C c .” Calculation: It is given that, the value of a = 4.8 cm , b = 1.6 cm , and c = 4.2 cm . The largest side is a . Substitute the given values in law of cosines and obtain A. a 2 = b 2 + c 2 − 2 b c cos A 2 b c cos A = b 2 + c 2 − a 2 cos A = b 2 + c 2 − a 2 2 b c On further simplification, cos A = ( 1.6 ) 2 + ( 4.2 ) 2 − ( 4.8 ) 2 2 ( 1

Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book

10th Edition

ISBN: 9780133347777

Author: Robert A. Carman Emeritus, Hal M. Saunders

Publisher: PEARSON

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Chapter 10.4, Problem 12AE

To determine

To solve: The triangle with given information.

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Chapter 10.4, Problem 11AE

Chapter 10.4, Problem 13AE

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Chapter 10 Solutions

Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book

Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Prob. 7AE Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Prob. 9AE Ch. 10.1 - Prob. 10AE

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The triangle with given information.

Solution Summary: The author explains how to solve a triangle with given information. Substitute the values in law of cosines and obtain A.

To solve: The triangle with given information.

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Chapter 10 Solutions