1. (The Pythagorean Theorem)
Chapter 8 Section 2
(The Pythagorean Theorem)
Officially…
In a right triangle,
the square of the hypotenuse
is equal to
the sum of
the squares of the legs. 2 2 2 c c = + a a b b b

2. Unofficially… (Leg 1) + (Leg 2) = Hypotenuse Hypotenuse Leg 1 Leg 2 2
Unofficially… 2 2 2
(Leg 1) +
(Leg 2) =
Hypotenuse
Hypotenuse
Leg 1
Leg 2

3. Example #1 6 4 a

4. Example #2 a 3 2

5. Example #3 a a 4

6. Example #4 5
a – 1 a

7. Example #5 5 x 8 11

8. Example #6
The perimeter of a rhombus is 68 cm and one diagonal is 16 cm. How long is the other diagonal?

9. Example #7
The dimensions of a rectangular box are 12, 4, & 3. Make a sketch and find the diagonal of the box. 3 A 4 B 12

10. Chapter 8 Section 2 (The Pythagorean Theorem)
Chapter 8 Section 2
(The Pythagorean Theorem)
Show the equations that you are solving.
Homework
Section 8.2 Written Exercises (p ) #2-38 (evens)