45-45-90 Triangles

45-45-90 Triangles

by Kiffany Cody

​Youtube Tutorial

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https://youtu.be/YbO9gOy0Np8

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Multiple Choice

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

Multiple Choice

What is the length of x in this 45-45-90 triangle?

• 4√2
• 4
• 8
• 4√3

Multiple Choice

What is the value of x?

• 12√2
• 2√12
• 24
• 2

Multiple Choice

• x=(7√2)/2   y=(7√2)/2
• x=7√2   y=7√2
• x=(7/2)   y=(7/2)
• x=14   y=14

Open Ended

What are you confused about so far?

​Youtube Tutorial

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​https://youtu.be/13gd2raOsxo

Multiple Choice

Find the value of x.

• 3 sqrt(2)
• 3
• 6 sqrt(2)
• 6

Multiple Choice

Find the value of y.

• 11√2
• 11
• 22
• (11√2)/2

Multiple Choice

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8

Multiple Choice

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

• 16

• 8

• 8√2

• √16

Multiple Choice

If the leg of a 45-45-90 triangle is 7 cm long, then its hypotenuse is _____ cm.

• 7√2
• 49√2
• 7
• 7√7

Multiple Choice

Solve for a and b in the special right triangle.

• a = 5, b = 5
• a = 10, b = 10√2
• a = 10√2, b = 10√2
• a = 5√2, b = 5√2

Open Ended

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Poll

How well do you think you've done on this assignment?

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• PRETTY GOOD

• BARELY PASSED

• I'M SURE I FAILED

​Guidance

If you did not score a 70 or above, go back an take this again.​