Geometry Notes

Page 1

Geometry Notes

Date: 09/04/20XX

Pythagorean Theorem

a^2+b^2=c^2

When do I use Pythagorean Theorem?

When i know length of 2 sides and need to know length of 3rd side

Example:

Sides of right triangle 1

3

4

5

Sides of right triangle 2

6

?

10

Sides of right triangle 3

9

12

?

Sides of right triangle 4

?

16

20

Answers: 1=5 , 2=8 , 3=15 ,4=12

What do you notice about the sides of triangle 2 compared to the sides of triangle 1?

The data from triangle one is multiplied by 2

What do you notice about the sides of triangle 3 compared to triangle 1?

Each side increases by 3

Is 1 similar to 4? Explain your answer

Yes because it has a common factor of 4

A pythagorean triple is three integers that make the equation a^2+b^2=c^2 true called pythagorean triples

The numbers 3, 4 and 5 are a very famous Pythagorean triple

The short leg is the X