4: Two ships are currently sailing towards the port in a nearby city. Located at the edge of the port is a lighthouse which guides the ships. From the furthest ship from the port, a person looks up to the top of the lighthouse with an angle of elevation of 20% From the closest ship from the port, a person looks up to the top of a lighthouse with an angle of elevation of 40°. The distance between the two ships is 200m and the closest ship is 500m from the port. How tall is the lighthouse?
4: Two ships are currently sailing towards the port in a nearby city. Located at the edge of the port is a lighthouse which guides the ships. From the furthest ship from the port, a person looks up to the top of the lighthouse with an angle of elevation of 20% From the closest ship from the port, a person looks up to the top of a lighthouse with an angle of elevation of 40°. The distance between the two ships is 200m and the closest ship is 500m from the port. How tall is the lighthouse?
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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Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
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4: Two ships are currently sailing towards the port in a nearby city. Located at the edge of the port is a
lighthouse which guides the ships. From the furthest ship from the port, a person looks up to the top of
the lighthouse with an angle of elevation of 20%. From the closest ship from the port, a person looks up
to the top of a lighthouse with an angle of elevation of 40°. The distance between the two ships is 200m
and the closest ship is 500m from the port. How tall is the lighthouse?
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