TRIGONOMETRY

• True

• False

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

• hypotenuse

• reference angle

• opposite

• adjacent

This symbol means "theta" or reference angle.

• σ

• θ

• ∠

• °

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.

• AB

• AC

• BC

Identify the adjacent in this right triangle.

• AB

• BC

• AC

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

In this right triangle, sin θ is equal to