1. Pythagorean Theorem Converse Special Triangles

2. Pythagorean Theorem What do you remember? Right Triangles Hypotenuse – longest side Legs – two shorter sides

3. Right Triangle Hypotenuse = c Legs are a and b Remember how to determine which leg will be longer longer leg across from larger angle

4. Type of Triangle We also discussed other types of triangles that could be formed using a version of Pythagoreans Theorem

5. Example

7. Special Right Triangles Isosceles Right Triangle 45-45-90 Two sides are congruent Two angles are congruent Can you prove this

8. Proof

9. Special Right Triangle 30-60-90 Short leg across from 30 Long leg across from 60 Hypotenuse across from 90

10. Proof

11. Homework Pg 481 2,4,6,12,14 Honors 17 and 18 Pg 486 1-6 Type, 7-15 odd Honors 18 and 19 Pg 493 1-8