Special Right Angles Triangles

What is the rule for a 45-45-90 triangle?

What type of special triangle is this?

• 45°-45°-90°
• 30°-60°-90°
• Equiangular
• Equilateral

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

• 5
• 5√2
• 10
• 5√3

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

• 8√2
• 4√2
• 4
• 8

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

• 4√2
• 4
• 8
• 4√3

What is the measure of side c?

• 7
• 7/√2
• 7√2
• 14

Find a. 

• 2
• 4
• 2/√2
• 2√3

What is the rule for a 3-60-90 triangle?

What type of special triangle is this?

• 45°-45°-90°
• 30°-60°-90°
• Isosceles
• Obtuse

Find x.

• 4
• 2
• √3
• 2√2