In Exercises 15 to 20, use the sine, cosine, or tangent ratio to find the lengths of the indicated sides to the nearest tenth of a unit.
![]() |
To find:
The lengths of the indicated sides to the nearest tenth of a unit using the sine, cosine or tangent ratio.
Given:
The triangle with the indicated sides is shown below.
Definition used:
The trigonometric ratios:
Calculation:
Let
From the figure we see that
We need to find the values of a, c.
We have
We have
Let us use Ti-83 calculator to find the value of
Press
Since we need to find the value of degree, we need to change the mode to degrees.
Press
Let us find the values, correct to four decimal places.
Since we need the values of
Mathematical Excursions (MindTap Course List)
Calculus: An Applied Approach (MindTap Course List)
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Calculus: Early Transcendental Functions
Elementary Technical Mathematics
Applied Calculus
Calculus (MindTap Course List)
Statistics for The Behavioral Sciences (MindTap Course List)
Precalculus: Mathematics for Calculus (Standalone Book)
Single Variable Calculus
Finite Mathematics
Understanding Basic Statistics
Calculus: Early Transcendentals
Probability and Statistics for Engineering and the Sciences
Single Variable Calculus: Early Transcendentals, Volume I
Intermediate Algebra
Mathematical Applications for the Management, Life, and Social Sciences
Multivariable Calculus
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Finite Mathematics and Applied Calculus (MindTap Course List)
Essentials Of Statistics
Single Variable Calculus: Early Transcendentals
Contemporary Mathematics for Business & Consumers
Elements Of Modern Algebra
Trigonometry (MindTap Course List)
Calculus of a Single Variable
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
Calculus: Early Transcendental Functions (MindTap Course List)
Study Guide for Stewart's Multivariable Calculus, 8th
Finite Mathematics for the Managerial, Life, and Social Sciences
Introduction To Statistics And Data Analysis
STATISTICS F/BUSINESS+ECONOMICS-TEXT
Multivariable Calculus
Research Methods for the Behavioral Sciences (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
College Algebra (MindTap Course List)
Mathematics For Machine Technology
Calculus (MindTap Course List)
Statistics for Business & Economics, Revised (MindTap Course List)