Chau and Donna are standing on a riverbank, 180 meters apart, at points A and B respectively. (See the figure below.) Donna is 230 meters from a house located across the river at point C. Suppose that angle A (angle BAC) is 49°. What is the measure of angle B (angle AB C)? Round your answer to the nearest tenth of a degree. 180 m 49° 230 m 44 4

Chau and Donna are standing on a riverbank, 180 meters apart, at points A and B respectively. (See the figure below.) Donna is 230 meters from a house located across the river at point C. Suppose that angle A (angle BAC) is 49°. What is the measure of angle B (angle AB C)? Round your answer to the nearest tenth of a degree. 180 m 49° 230 m 44 4

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section8.2: The Law Of Cosines

Problem 20E

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