Find the measure of the indicated angle to the nearest degree. 1) 2) 10 23 5. 3) 42 49 45 57
Find the measure of the indicated angle to the nearest degree. 1) 2) 10 23 5. 3) 42 49 45 57
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°.
Related questions
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:Name:
Date:
Intro to College Math -
- Finding missing angles of right triangles using trig ratios
CW- notess
Finding angles:
1. Label each side of the triangle with 0, H, and A
2. Using the sides that you are given information on-choose which trig function you will be using
and write it.
3. Substitute the values in the problem into your trig function.
4. Make both sides of the equal sign into a fraction and cross multiply.
5. Solve for x. WHEN YOU ARE SOLVING FOR AN ANGLE YOU MUST USE THE INVERSE FUNCTIONS
ON YOUR CALCULATOR (SIN', cos', TAN"). IT IS THE ONLY WAY TO GET X ALONE.
Examples:
Find the measure of the indicated angle to the nearest degree.
1)
2)
8
10
23
5
3)
42
49
45
57
25
34
16
Transcribed Image Text:13) tan 0
14) sin 0
25
24
7
6.
V13
Find the value of each. Round your answers to the nearest ten-thousandth.
15) cos 10°
16) sin 60°
17) csc 21°
18) cos 60°
19) tan 40°
20) csc 59°
21) csc 56°
22) cot 65°
23) tan 10°
24) tan 25°
Find the value of the trig function indicated.
26) Find cot 0 if sec 0 = 2
3
25) Find csc 0 if tan 0 =
4
27) Find tan 0 if sin 0 =
5
5
28) Find cot 0 if sec 0 =-
4.
3V13
29) Find sec 0 if sin 0 =
13
12
30) Find cot 0 if sin 0 =-
13
Critical think questions:
32) What is the slope of the hypotenuse f
How does that compare to tan 0? W
31) Draw a right triangle that has an angle with a
tangent of 1.
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