Chapter 4 Practice Test

tan A = ??

• 5/3

• 3/5

• 3/4

• 4/3

cos B = ??

• 12/13

• 12/5

• 5/13

• 5/12

Find the value of x.

• 14.3

• 7.3

• 31.4

• 35.2

Find x.

• 12.8

• 77.2

• 12.5

• 77.5

Frank built a skateboard ramp that is 16 in. high. The angle formed with the edge of the ramp and the ground is 21^o. What is the length of the ramp?

• 5.7

• 44.6

• 41.7

• 17.1

To find the measure of angle R, which trigonometric ratio SHOULD you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

Choose the correct ratio.

• sin(37)=x/14
• cos(37)=x/14
• tan(37)=x/14
• sin(37)=14/x

• 52.1^o

• 37.9^o

• 180^o

• 11.6^o

You are on a ship at sea. You see a lighthouse in the distance. You know the lighthouse is 175 feet tall. You measure the angle of elevation to the top of the lighthouse at 5^o. How far are you from the bottom of the lighthouse?

• 2000.3 feet

• 2007.3 feet

• 1997.9 feet

• 2134.8 feet

Solve for the missing angle

• 50
• 0.053
• 36.9
• 95