Geometry: Activity 21 Special Right Triangles

What type of special triangle is this?

• 45°-45°-90°

• 30°-60°-90°

• Equiangular

• Equilateral

What type of special triangle is this?

• 45°-45°-90°

• 30°-60°-90°

• Isosceles

• Obtuse

Find x.

• 10

• √3

• 5

• 10√3

Find x.

• 4

• 2

• √3

• 2√2

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 are x and y in this 30-60-90 triangle?

• x = 6 y = 3√3

• x = 3√2 y = 3

• x = 3√3 y = 6

• x = 6 y = 3√2

Find the missing side length. Leave your answer in simplified radical form.

Find the missing side length. Leave your answer in simplified radical form.

Find the missing side length. Leave your answer in simplified radical form.