Right Triangle Trigonometry and Applications

What is the correct ratio?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

What is the cosine of angle P?

• p/q

• q/r

• p/r

• r/q

Find x.

• 10

• √3

• 5

• 10√3

Find x.

• 4

• 2

• √3

• 2√2

What is the length of x?

• 4√2

• 4

• 8

• 4√3

What is the length of y?

• 8√2

• 4√2

• 4

• 8

What are u and v in this 30-60-90 triangle?

• v = 2√3 u = 6

• v = 4 u = 4√3

• v = 4 u = 4√2

• v = 4√3 u = 8√3

Find the length of the missing side. 

• 17 cm

• 22 cm

• 15 cm

• 13 cm

Solve for x. Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 23.4

Solve for x. Round to the nearest tenth.

• 9.8

• 0.1

• 0.038

• 9.9