Solving for Angle Measures of Right Triangles

Question 1

1✔ 768692

Revolt · Accepted Answer

✔ 76

Question 2

Use a calculator to find the values of the inverse trigonometric functions. Round to the nearest degree.

Revolt · Accepted Answer

✔ 42; sin–1 = °: 42; tan–1(4) = °: 76; cos–1(0.1) = °: 84

Question 3

Use the diagram and complete the steps to find the measure of the angle of depression from the top of the hoop to Lisa.

Revolt · Accepted Answer

The angle of depression from the hoop to Lisa is to the angle of elevation from Lisa’s line of sight to the hoop.: inverse tangent; Because the lengths of the opposite and adjacent sides are known, use the function.: 19

Question 4

1✔ 8487X 89

Revolt · Accepted Answer

✔ 84

Question 5

Which equation could be used to find m∠J in △JKL?

Revolt · Accepted Answer

x = cos–1

Question 6

What is the value of x, rounded to the nearest degree?

Revolt · Accepted Answer

✔ 71; x ≈ °: 71; Is this ladder being used safely?: yes

Question 7

✔ yesnoThere is not enough information to determine.

Revolt · Accepted Answer

✔ yes

Question 8

Use the diagram to complete the statements.

Revolt · Accepted Answer

3; The angle of depression from point R to point S is angle .: 3; The angle of elevation from point S to point R is angle .: 4; Angle 2 is the angle of elevation from .: point R to point Q; Angle 1 is the angle of .: depression from point Q to point R

Question 9

The angle of elevation from point S to point R is angle .

Revolt · Accepted Answer

4

Question 10

Angle 2 is the angle of elevation from .

Revolt · Accepted Answer

point R to point Q

Solving for Angle Measures of Right Triangles Answers

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