1. Interactive Notebook Entries Table of Contents pg
Interactive Notebook Entries Table of Contents pg. 21 Special Right Triangles Notes Pg. 22 Special Right Triangles Practice

4. 7.3 Special Right Triangles
*You will be able to find the lengths of sides of special right triangles
And

5. Special Right Triangles
Leg:Leg:Hypotenuse
Short Leg:Long Leg:Hypotenuse

7. LEGS ARE THE SAME LENGTH
In a triangle…
LEGS ARE THE SAME LENGTH
We will use a reference triangle to set up an equation then solve.

8. This is our reference triangle for the 45-45-90.
Right Triangle 1 1
This is our reference triangle for the

9. Right Triangle x x

10. Example 1: Solve for x x 3
Hyp =
• Leg 3

11. Example 2: Solve for x x 5 5
Hyp =
• Leg

12. Example: 3 Solve for x
Hyp =
• Leg 45 3 x

14. We will use a reference triangle to set up an equation then solve.
Right Triangle 60 2 1 30
This is our reference triangle for the triangle.
We will use a reference triangle to set up an equation then solve.

15. Right Triangle
60 2x x
30

16. Example: 1 Solve for x and y60 8 x 30 y

17. Solve for x
Example 2: 30 x 24 60

18. Example: 3
Solve for x and y 30 14 y 60 x
14 = 2x
7 = x

19. Example 4: Solve for x and y60 30 y
y = 10
5 = x