Finding Missing Sides and Angles in Right Triangle

Which Trig function do you use?

• Sine

• Cosine

• Tangent

What would you use to solve for a?

• sin

• cos

• tan

• Pythagorean theorem

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

Using the equation already set up, solve for x. Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 23.4

Solve for x.

• 50.7

• 50.1

• 60.7

• 61.0

Find the length of the missing side. 

• 25 cm

• 42 cm

• 52 cm

• 48 cm

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2

A tourist views a deer from a height of 45 feet.  The horizontal distance between the tourist and the deer is 130 feet.  How many degrees should the tourist tilt his camera down to photograph the deer? Round your answer to the nearest degree.  

• 19 degrees

• 45 degrees

• 71 degrees

• 138 degrees 

Which trigonometric function would you use to find "h", the height of the tree?

• sine

• cosine

• tangent

• none of these

Choose the correct set-up to solve for x.