1. Special Right Triangles 45-45-90 And 30-60-90

2. Focus on 45-45- 90 Also called an isosceles right triangle

3. Simplifying radicals

4. Now… You try to find the missing side abc 11 22 33 44 55 66 77 88 99 10 11 12 13 a b c

5. Did you notice a pattern???

6. Very Important Notes In a 45-45-90 right triangle… ***Both legs MUST be the same length ***If you are given a leg, multiply by to find the hypotenuse ***If you are given the hypotenuse, divide by to find a leg.

7. Before we begin What is (4 ) 2 ? What is 5 times ? What is 5 divided by ? What is 8 divided by ?

14. Let’s Practice Rally Robin…. 45-45-90