Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 7 - Review Exercises - Page 343: 25

Answer

The distance from A to B is 58.6 feet

Work Step by Step

We can find angle $A$: $A+B+C = 180^{\circ}$ $A = 180^{\circ}-B-C$ $A = 180^{\circ}-58.4^{\circ}-27.9^{\circ}$ $A = 93.7^{\circ}$ We can use the law of sines to find the length of side $AB$: $\frac{AB}{sin~C} = \frac{BC}{sin~A}$ $AB = \frac{BC~sin~C}{sin~A}$ $AB = \frac{(125~ft)~sin~(27.9^{\circ})}{sin~93.7^{\circ}}$ $AB = 58.6~ft$ The distance from A to B is 58.6 feet
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