To calculate the height of a tree, Marie measures the angle of elevation from a point A to be 46°. She measures her distance to be 12 m from the base of the tree. How high is the tree to the nearest tenth of a metre?
To calculate the height of a tree, Marie measures the angle of elevation from a point A to be 46°. She measures her distance to be 12 m from the base of the tree. How high is the tree to the nearest tenth of a metre?
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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Concept explainers
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.
Question
Transcribed Image Text:To calculate the height of a tree, Marie measures the angle of elevation
from a point A to be 46°. She measures her distance to be 12 m from
the base of the tree. How high is the tree to the nearest tenth of a
metre?
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