A 30-60-90 triangle is a triangle with angle measures of 30°, 60° and 90°.
The ratio of sides of a 30-60-90 triangle are: 1, √3, 2 (short leg, long leg, hypotenuse)
To solve for a missing side in a 30-60-90 triangle:
 Draw a similar triangle
 Label the sides 1, √3, 2 (short, long, hyp)
 Set up a proportion and solve!
Examples:
1. Solve for x and y.
2. Solve for x and y.
3. Solve for x and y.
4. Solve for x and y.
5. Solve for x and y.
6. Solve for x and y.
7. Solve for x and y.
8. Solve for x and y.
9. The perimeter of an equilateral triangle is 24cm.
What is the length of the altitude?
10. The shortest side of a 30-60-90 triangle is 6m.
Find the perimeter of the triangle.