48. Which is the angle of depression in this figure? E D 49. let b= the height of the building, and f the height of the flagpole. Using 30° as an angle of elevation of the top of the building, and 32° for the flagpole, what will be the height of the flagpole? 300 ft 50. How far (x) is the boat from the bottom of the lighthouse? level 70 ft 51. A flagpole cast a shadow of 15 meters on the ground. If the angle of elevation of the sun is 30°, what will be the height (x) is the flagpole at the right? X 30⁰ -15 m-

48. Which is the angle of depression in this figure? E D 49. let b= the height of the building, and f the height of the flagpole. Using 30° as an angle of elevation of the top of the building, and 32° for the flagpole, what will be the height of the flagpole? 300 ft 50. How far (x) is the boat from the bottom of the lighthouse? level 70 ft 51. A flagpole cast a shadow of 15 meters on the ground. If the angle of elevation of the sun is 30°, what will be the height (x) is the flagpole at the right? X 30⁰ -15 m-

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

48. Which is the angle of depression in this figure?
E
D
49. let b= the height of the building, and f the height of the flagpole. Using 30° as an angle
of elevation of the top of the building, and 32° for the flagpole, what will be the height of
the flagpole?
300 ft
50. How far (x) is the boat from the bottom of the lighthouse?
level
70 ft
51. A flagpole cast a shadow of 15 meters on the ground. If the angle of elevation of the
sun is 30°, what will be the height (x) is the flagpole at the right?
X
30⁰
-15 m-

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