# High School Math : Understanding 30-60-90 Triangles

## Example Questions

### Example Question #1 : Triangles

In this figure, , and . What is the value of angle ?

Undefined

Explanation:

Notice that these sides fit the pattern of a 30:60:90 right triangle: .

In this case, .

Since angle  is opposite , it must be .

### Example Question #1 : Graphing The Sine And Cosine Functions

A triangle has angles of . If the side opposite the angle is , what is the length of the side opposite ?