Find the Missing Length and Angle Measures Using Trigonometry

Find the measure of the indicated angle.

Find the measure of the missing angle.

Find the measure of the angle.

Find the measure of the missing angle.

Find the measure of ths missing angle.

• error

Find the measure of the missing angle.

Calculate the angle of elevation.

(Hint: In this case, the angle of elevation is the angle

at which the plane took off.)

Because of the pitch of the attic's roof, a bookcase that is 5 feet high must be placed as shown. What is the measure of the angle formed by the roof and the floor of the attic?

• ≈ 67 degrees

• ≈ 25 degrees

• ≈ 23 degrees

• ≈ 65 degrees

• ≈ 40 degrees

Find the value of tan(X).

A tourist views a deer from a height of 45 feet.  The horizontal distance between the tourist and the deer is 130 feet.  At what angle (x) should the tourist hold his camera to photograph the deer? Round your answer to the nearest degree.  

• 19 degrees
• 45 degrees
• 71 degrees
• 138 degrees