Special Triangles - Extra Practice

What is the length of y in this picture?

• 45
• 5√2
• 90
• 5

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

• 4√2
• 4
• 8
• 4√3

What is the length of u and v in this 30-60-90 triangle?

• u = 8 v = 4√3
• u = 4√2 v = 8
• u = 16 v = 8
• u = 4√3 v = 8

What is the cosine of angle P?

• p/q
• q/r
• p/r
• r/q

Which Trig function do you use?

• Sine
• Cosine
• Tangent

What would you use to solve for a?

• sin
• cos
• tan
• Pythagorean theorem

What is the correct ratio?

• sin 40 = w/28
• cos 40 = w/28
• tan 40 = w/28
• sin 40 = 28/w

Solve for the missing angle

• 50
• 0.053
• 36.9
• 95

What is tan(45)?

• 1

What is sin(30)?