4. A bridge across a gorge is 210 m long, as shown in the diagram at the left. The walls of the gorge make angles of 60° and 75° with the bridge. Determine the depth of the gorge to the nearest metre. wsJ 9nizo bns wsJ ene sin 210 m V60 175 MO 49A 3. JU-s A9osiq Ismbeb I ol 219wane lenit.lls boup 2ga lls wod2

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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4. A bridge across a gorge is 210 m long, as shown in the diagram at the left. The walls of the gorge make angles of
60° and 75° with the bridge. Determine the depth of the gorge to the nearest metre.
WsJ 9nizoɔ bns wsl ene
sinu 210 m
175
MO
HMK
49A
Transcribed Image Text:4. A bridge across a gorge is 210 m long, as shown in the diagram at the left. The walls of the gorge make angles of 60° and 75° with the bridge. Determine the depth of the gorge to the nearest metre. WsJ 9nizoɔ bns wsl ene sinu 210 m 175 MO HMK 49A
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