1. Looking For Pythagoras Practice, Practice, Practice!

2. Practice the Pythagorean Theorem The base of a ladder is placed 6 feet from a wall. If the top of the ladder rests 8 feet up on the wall, how long is the ladder? 6 feet 8 feet ? feet a 2 + b 2 = c 2 8 2 + 6 2 = c 2 64 + 36 = c 2 100 = c 2 10 = c The length of the ladder is 10 feet.

3. Donna's TV screen is 20 inches long. If the diagonal measures 25 inches, how long is the width of Donna's TV? Practice the Pythagorean Theorem 20 inches 25 inches ? inches a 2 + b 2 = c 2 20 2 + b 2 = 25 2 400 + b 2 = 625 b 2 = 225 b = 15 The width of the TV is 15 inches.

4. Town A is 9 miles north of Town B. Town C is 12 miles east of Town A. A road connects towns B and C directly. Find the length of this road. Practice the Pythagorean Theorem Town A Town B Town C 9 miles 12 miles ? miles a 2 + b 2 = c 2 9 2 + 12 2 = c 2 81 + 144 = c 2 225 = c 2 15 = c The length of the road is 15 miles.

5. If the legs of an isosceles right triangle are 5 inches long, find the length of the hypotenuse. Practice the Pythagorean Theorem 5 inches ? inches a 2 + b 2 = c 2 5 2 + 5 2 = c 2 25 + 25 = c 2 50 = c 2

6. Your Assignment! The Pythagorean Theorem wkst