Pythagorean Theorem & Special Right Triangles

Find the length of the missing side. 

• 25 cm
• 42 cm
• 52 cm
• 48 cm

Can the sides of a triangle have lengths of 3, 8, and 9?

• Yes

• No

Can the sides of a triangle have lengths of 3, 4, and 9?

• Yes

• No

Acute, right, or obtuse?

• Acute

• Right

• Obtuse

• Sides don't form a triangle

Acute, right, or obtuse?

• Acute

• Right

• Obtuse

• Sides don't form a triangle

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

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

• 8√2
• 4√2
• 4
• 8

What is the value of x?

• 2

• 18√2

• 2√9

• 18/√2

Find the missing side lengths.

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

Acute, right, or obtuse?

• Acute

• Right

• Obtuse

• Sides don't form a triangle