1. World 1-1 Pythagoras’ Theorem

2. When adding the areas of the two smaller squares, a2a2 Using math we say c 2 =a 2 +b 2 b2b2 c2c2 their sum will ALWAYS equal the area of the larger square for any right angled triangle.

4. a b The sides that make an L are called the legs, a or b. The side across from the right angle is called the hypotenuse, c. c If we know any 2 side lengths we can find the 3 rd using c 2 = a 2 + b 2 L hypotenuse

5. 8 m 6 m Case I: The hypotenuse is unknown. ? m a b c

6. 30 m 20 m Case II: A leg is unknown. ? m a b c

7. Homework World 1-1