All High School Math Resources
Example Question #1 : Understanding 30 60 90 Triangles
In this figure, , , and . What is the value of angle ?
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 #2 : Understanding 30 60 90 Triangles
A triangle has angles of . If the side opposite the angle is , what is the length of the side opposite ?
The pattern for is that the sides will be .
If the side opposite is , then the side opposite will be .