Right Triangle Trig Angles

What is the value of x?

• 9.17

• 98.13

• 0.11

• 26.69

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.  The distance between the yacht and the top of the lighthouse is about 100 feet.  Which of these is nearest to the height of the lighthouse? 

• 25 feet

• 45 feet 

• 110 feet 

• 135 feet 

What is the value of x?

• 4.20

• 7.32

• 0.14

• 4.91

Which would you use to solve for the missing piece?

We can use SOH-CAH-TOA for...

• Any triangle ever

• Non-right triangles only

• Right Triangles only

• Never

Which trigonometric ratio is correct?

• cos C= adj/hyp

• sin C= adj/hyp

• tan C= adj/hyp

• tan C=adj/opp

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

The inverse of what trig function would be used to solve for the indicated angle?

• Sine

• Cosine

• Tangent

The inverse of what trig function would be used to solve for the indicated angle?

• Sine

• Cosine

• Tangent