Finding Missing Sides Using Trig Ratios

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine
• cosine
• tangent
• cotangent

Choose the correct ratio.

• cos(33)=x/14
• sin(33)=x/14
• cos(33)=14/x
• sin(33)=14/x

Solve for x. Round to 1 d.p.

• 103.5
• 4.7
• 55.0
• 23.4

Solve for x. Round to 1 d.p.

• 9.8
• 0.1
• 0.038
• 9.9

What is the correct equation to solve for x ?

• tan( 46 ) = 17/x
• sin ( 46 ) = x/17
• tan (46 ) = x/17
• cos (46) = x/17

What equation can be used to solve for x?

• Sin(40°)= x/40

• Sin(40º)=x/19

• Cos(40º)=x/19

• Tan(40°)=19/x

Solve for x.

• 10
• 11.3
• 12.0
• 15.0

Solve for x.

• 50.7
• 50.1
• 60.7
• 61.0

Which triangle is correctly labeled?

• 
• 
• 
• 

Solve for x. Round to 1 d.p.

• 7.5

• 34.1

• 14.1

• 30.1