1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp. a. 10.82 feet b. 2.90 feet C. 0.72 feet d. 10.45 feet
1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp. a. 10.82 feet b. 2.90 feet C. 0.72 feet d. 10.45 feet
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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
Transcribed Image Text:1. Jessie is building a ramp for loading motorcycles onto a trailer. The trailer is 2.8 feet off of the ground. To
avoid making it too difficult to push a motorcycle up the ramp, Jessie decides to make the angle between the
ramp and the ground 15°. To the nearest hundredth of a foot, find the length of the ramp.
a. 10.82 feet
C. 0.72 feet
d. 10.45 feet
b. 2.90 feet
2. Some mountains in the Alps are very steep and have a grade of 42.7%. To the nearest degree, what angle do
these mountains make with a horizontal line?
a.
23°
C.
47°
b. 67°
d. 32°
3. Classify each angle in the diagram as an angle of elevation or an angle of depression.
a. Angles of elevation: Z1, 23
Angles of depression: 2, 24
b. Angles of elevation: 2. 24
C. Angles of elevation: Z1, 4
Angles of depression: 2, 23
d. Angles of elevation: 223
n m
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