# 10.03 Sine, cosine, and tangent ratios

## Interactive practice questions

Identify the angle that is opposite the hypotenuse.

$\angle ABC$ABC

A

$\angle CAB$CAB

B

$\angle ACB$ACB

C

$\angle ABC$ABC

A

$\angle CAB$CAB

B

$\angle ACB$ACB

C
Easy
Less than a minute

Consider the angle $\theta$θ.

What is the value of the ratio $\frac{\text{Opposite }}{\text{Adjacent }}$Opposite Adjacent ?

Consider the angle $\theta$θ.

What is the value of the ratio $\frac{Opposite}{Hypotenuse}$OppositeHypotenuse?

Consider the angle $\theta$θ.

What is the value of the ratio $\frac{Opposite}{Adjacent}$OppositeAdjacent?

### Outcomes

#### II.G.SRT.6

Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.