Trigonometric Ratios and Their Applications

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

What is the correct ratio?

• 7/24
• 24/7
• 7/25
• 24/25

What is the correct ratio?

• 9/41
• 40/41
• 9/40
• 40/9

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

In right triangle ABC, ∠A and ∠B are complementary angles.  The value of sin A = 5/13.  What is the value of cos B?

• 5/13
• 12/13
• 13/12
• 13/5

Find x if sin 22^o = 2/x.

• 6.78
• 0.75
• 2.14
• 5.34

Solve for x. Round to the nearest tenth.

• 7.5
• 34.1
• 14.1

Find the length of side W?
sin 68 = 70/w

• 186.86 m
• 75.50 m
• 28.28 m
• .01 m

A ship drops an anchor to the bottom of the ocean and drifts with the current. The the 30 meter long anchor rope creates an angle of depression of 39 degrees. How deep is the ocean in that location?

• 18.9
• 19.5
• 47
• 27.5