Q2. A man sitting at a height of 40 m on a tall tree on a small island in the middle of a river observes two poles directly opposite to each other on the two banks of the river and in line with the foot of tree. If the angles of depression of the feet of the poles from a point at which the man is sitting on the tree on either side of the river are 75° and 43°respectively. Find the width of the river.

Q2. A man sitting at a height of 40 m on a tall tree on a small island in the middle of a river observes two poles directly opposite to each other on the two banks of the river and in line with the foot of tree. If the angles of depression of the feet of the poles from a point at which the man is sitting on the tree on either side of the river are 75° and 43°respectively. Find the width of the river.

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

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Question

Q2. A man sitting at a height of 40 m on a tall tree on a small
island in the middle of a river observes two poles directly
opposite to each other on the two banks of the river and in line
with the foot of tree. If the angles of depression of the feet of
the poles from a point at which the man is sitting on the tree
on either side of the river are 75° and 43°respectively. Find
the width of the river.

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