45-45-90 Special Triangle

If AB = 7, find the length of BC and AC.

If AB = 8, find the length of BC and AC.

If AC = 4, find the length of AB and BC.

If AC = 8, find the length of AB and BC.

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

• 8√2

• 4√2

• 4

• 8

• a=4    b=2√2
• a=2√2   b=2√2
• a=2√2   b=4
• a=4   b=4

Given the 45-45-90 triangle, how would you find the value of x?

• Multiply 12 times the √3

• Multiply √2 times the √12

• Multiply 2 times 12

• Multiply 12 times √2

What is the length of side AT?

• 8√2

• 4√2

• 8

• 4

Find the value of y.

• 9

• 18√2

• 9√2

• (9√2)/2

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

• 8√2

• 4√2

• 4

• 8