1. The Pythagorean Theorem
A tool for right
triangle problems only

2. When do I need to use the Pythagorean Theorem ?
When I know: length of 2 sides
And
Need to know: length of 3rd side

3. What is the Pythagorean Theorem?b c

4. The hypotenuse is ALWAYS across the right angle.
a & b are the legs and c is the hypotenuse a b c

5. Using a2 + b2 = c2 5 7 x

6. Using a2 + b2 = c2 15 20 x

7. Using a2 + b2 = c2
Round x to the
Nearest whole number
6.2
12.3 x

8. Using a2 + b2 = c2 6 x 10

9. Using a2 + b2 = c2
Round x to the
Nearest whole number
3.1 x
5.7

10. Using a2 + b2 = c2 24 x 25