Free Printable TRIGONOMETRY

Worksheets

Name

Class

Date

Pythagorean Theorem, $a^2+b^2=c^2$ , is used to find the length of any side of a right triangle

True

False

The side of a right triangle opposite to the 90^oangle is called the

hypotenuse

reference angle

opposite

adjacent

This symbol means "theta" or reference angle.

∠

Identify the reference angle in this right triangle.

∠A

∠B

∠C

Identify the reference angle in this right triangle.

∠A

∠B

∠C

Identify the hypotenuse in this right triangle.

Identify the adjacent in this right triangle.

In the mnemonics, SOH – CAH – TOA, CAH is the formula for

sine

cosine

cosecant

tangent

Formula for finding tanθ is equal to

adjacent/hypotenuse

opposite/adjacent

hypotenuse/opposite

opposite/hypotenuse

10.

In this right triangle, sin θ is equal to

$\frac{\text{3}}{\text{5}}$

$\frac{\text{3}}{\text{4}}$

$\frac{\text{4}}{\text{3}}$

$\frac{\text{5}}{\text{3}}$

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