45-45-90 Special Triangle

Find a.

• 4

• 2

• 4√2

• 2√4

Find y.

• 8√2

• 4√2

• 4

• 8

Is this a 45-45-90 triangle?

• Yes

• No

• No clue

If you are given the LEG of a 45-45-90 triangle, how do you find the HYPOTENUSE?

• Multiply by 2

• Divide by 2

• Multiply by √2

• Divide by √2

If you are given the LEG of a 45-45-90 triangle, how do you find the OTHER LEG?

• Multiply by √2

• Divide by √2

• They're congruent

Q1. What is the value of 8√2?

• 128

• 8√2

• 16

• 2√2

c = 6√2 d = 12 c = 2√6 d = 6√2 c = 6 d = 12√2 c = 6√2 d = 6√2

• c = 6√2 d = 12

• c = 2√6 d = 6√2

• c = 6 d = 12√2

• c = 6√2 d = 6√2

Find x - the length of the hypotenuse of the triangle.

• 7

• 14

• 7√2

• 7/2

Use the 45-45-90 theorem to solve for the hypotenuse.

• 16

• 8

• 8√2

• √16

Find x.

• 2

• 18

• 2√9

• 9√2