Review of Right Triangles and Trigonometry

Find the value of y.

• 9

• 18√2

• 9√2

• (9√2)/2

What is the correct ratio?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

What would you use to solve for a?

• sin

• cos

• tan

• Pythagorean theorem

Which trig function would you use with this diagram?

• ^Sin

• ^Cos

• ^Tan

• ^Wha??

• G
• H
• J
• K

What is the correct equation to solve for x?

• tan (45) = x/13

• cos (45) = x/13

• sin (45) = 13/x

• sin (45) = x/13

What is the sin(x) in the figure?

• 3/5

• 3/4

• 4/5

• 5/3

What is the value of tan(60°)?

• 0.5

• 0.577...

• 0.866...

• 1.732...

• 4 units

• 4\sqrt{3} units

• 8 units

• 8\sqrt{3} units

Right triangle ABC is shown. Select all expressions which are equal to the length of side BC.