Application of Trigonometric

The angle of elevation of the top of a tower is 30°.  If the height of the tower is doubled then the angle of elevation of the top will be_____

• No change: 30°

• Will be doubled : 60°

• will become 45°

• None of the above

Say 'TRUE' or 'FALSE'
If both the height of the pole and the distance of the point of observation from the foot are increased by the same length, the angle of elevation of its top remains unchanged

• TRUE

• FALSE

Solve for x.

• 24.20

• 4.92

• 290.4

• 29.75

Find the bearing of A from B

• 250^o

• 110^o

• 290^o

• 070^o

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 

A kite is flying 78 ft above the ground, and the string is pulled taut. The angle of elevation of the kite is 65°.Find the length of the string. Round your answer to the nearest tenth.

• 70.7 ft.

• 36.4 ft.

• 184.6 ft.

• 86.1 ft.

The bottom of a 13-foot ladder is set into the ground 5 feet away from a wall. When the top of the ladder is leaned against the wall, what is the distance above the ground it will reach?

• 12 feet

• 13.9 feet

A ramp is being built next to a 4-inch high sidewalk. The ramps angle of inclination is 10 degrees.  Estimate the length of the ramp to the nearest tenth of an inch. 

• 4.1 inches

• 3.9 inches

• 22.7 inches 

• 0.7 inches 

Solve for the missing distance.

• 18.9

• 19.5

• 47

• 27.5

What trigonometric ratio would be used to find the distance from the ship to the plane?

• sine

• cosine

• tangent

• inverse sine