Trigonometry

Question 1

sinx

Answer 1

O/H or O divided by H

O = length of the leg opposite the angle
H = length of hypotenuse

Question 2

cosx

Answer 2

A/H

A = length of the leg Adjacent to the angle
H = length of the hypotenuse

Question 3

tanx

Answer 3

O/A

O = length of the leg Opposite of the angle
A = length of the leg adjacent to the angle

Question 4

S O H

Answer 4

Sin is Opposite over Hypotenuse

Question 5

C A H

Answer 5

Cosine is Adjacent over Hypotenuse

Question 6

T O A

Answer 6

Tangent is Opposite over Adjacent

Question 7

Purpose of Trigonometric Ratios

Answer 7

Allows us to solve a right angle if:
1. we know the lengths of the two sides, then we can find the measures of its two acute angles
2. If we know the length of one side of the right angle and the measure of one acute angle, then we can find the lengths of the remaining sides

Question 8

The leg of a triangle that is vertical from the right angle?

Answer 8

Opposite of the angle

Question 9

The leg of a triangle that is horizontal from the right angle?

Answer 9

Adjacent of the angle

Question 10

The leg of the triangle that is diagonal from the acute angle x

Answer 10

Hypotenuse