1. Solving sides of special right triangles
30°-60°-90°

2. 30°- 60°- 90°
The triangle is based on an equilateral triangle.
The altitude cuts the triangle into two congruent triangles. 2
60°
30°
30° 1 1

3. Triangle Theorem
In a 30°-60°-90° triangle, the length of the hypotenuse is 2 times the length of the shorter leg, x, and the length of the longer leg is times the length of the shorter leg.

4. 8 4 The key is to find the length of the short side. #1
30°- 60°- 90° Practice
60°
30°
The key is to find the length of the short side. 8 4

5. #2
30°- 60°- 90° Practice
60°
30° 3

6. 30°- 60°- 90° Practice
Now Let's
Go Backward

7. #3
30°- 60°- 90° Practice
60°
30° 22 11

8. #4
30°- 60°- 90° Practice
60°
30°

9. #5
30°- 60°- 90° Practice
60°
30° 46 23

10. #6
30°- 60°- 90° Practice
60°
30° 9

11. #7
30°- 60°- 90° Practice
60°
30°