Pythagorean Theorem and Distance Formula

Pythagorean Theorem and Distance Review

Poll

How ready are you for the quiz tomorrow or Friday?

Open Ended

What are some key things you remember about using the pythagorean theorem?

Pythagorean Theorem

• Must have a right triangle

• Must label the "c" correctly as the hypotenuse

• Substitute lengths into the equation

• Simplify and solve

Multiple Choice

The Pythagorean Theorem ONLY works on which triangle?

• obtuse

• scalene

• isosceles

• right

Multiple Choice

What is the side of a right triangle across from the right angle called?

• square

• arm

• leg

• hypotenuse

Multiple Choice

Find the length of the missing side.

• 25 cm

• 42 cm

• 52 cm

• 48 cm

Multiple Choice

Find the length of the missing side.

• 48 in.

• 52 in.

• 16 in.

• 24 in.

Multiple Choice

A 15 ft ladder is leaning against a building. The base of the ladder is 9 ft from the building. How high up does the ladder reach?

• 12

• 15

• 9

• 10

Open Ended

What do you know about finding the distance between two points?

Finding Distance

• Distance formula comes from pythagorean theorem

• You can turn the points into a right triangle or

• You can substitute the points into the formula

• Be careful typing it into the calculator!!

Multiple Choice

What is the distance between the two points?

• 6.3

• 6.5

• 6.7

• 16

Multiple Choice

Find the distance between J and K.

• 8.2

• 7.7

• 9

• 10.2

Multiple Choice

 Find the distance between (2,3) & (4,1)

• 3

• 5.66

• 2.83

• 2.79

Multiple Choice

Find the Distance between (10,3) & (2,-3)

• 11

• 21

• 10

• -21