A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0= 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft .... O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft

A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 90 feet downstream and sights point B on the opposite bank to determine that 0= 30° (see figure). How wide is the river? Round to the nearest foot. River 0 = 30° 90 ft .... O A. 45 ft O B. 52 ft OC. 156 ft O D. 104 ft

Trigonometry (MindTap Course List)

8th Edition

ISBN:9781305652224

Author:Charles P. McKeague, Mark D. Turner

Publisher:Charles P. McKeague, Mark D. Turner

Chapter7: Triangles

Section7.1: The Law Of Sines

Problem 36PS

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