Defining and understanding trigonometric ratios

 Find cosA

• 30/16
• 30/34
• 30/15
• 16/34

What is the side length ratio for Sine?

• Opp/Hyp

• Opp/Adj

• Adj/Opp

• Adj/Hyp

Answer explanation

SOH CAH TOA

Find the value of

 $\tan\ C$  

•  $\frac{5}{4}$  

•  $\frac{5}{3}$  

•  $\frac{3}{4}$  

•  $\frac{3}{5}$  

What is the formula for calculating tangent?

The cosine function is defined:

• Hypotenuse / Adjacent

• Opposite / Hypotenuse

• Adjacent / Hypotenuse

• Opposite / Adjacent

Which side is adjacent to angle x?

• 1
• 2
• 3

What is the correct ratio?

• 6/10

• 6/8

• 8/10

• 8/6

Use the triangle to find the

 $\cot X=$  
Be sure to reduce the answer, if needed.

•  $\frac{3}{5}$  

•  $\frac{4}{5}$  

•  $\frac{3}{4}$  

•  $\frac{4}{3}$  

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine

• cosine

• tangent

• hypotenuse