1 / 10
00
Social
Politics
Trigonometric
5 units
7 units
8 units
50 m
60 m
70 m
A surveyor is 130 feet from a tower; the tower is 86 feet high. The surveyor's instrument is 4.75 feet above the ground. If the surveyor sights the top of the tower with his instruments, what is the angle of elevation?
30 degrees
31 degrees
32.0 degrees
Can an Angle of Elevation be More Than 90?
yes
no
not identified
A boy is standing 50 feet away from a 30-foot-tall tree. What is the angle of elevation formed as he looks up at a bird on the top branch of the tree?
59 degrees.
30 degrees.
31 degrees.
the angle created by the line of sight of an observer and a horizontal line for an object above the horizontal is called the :
Angle of evaluation
Angle of depression
None of these
60 degrees.
80 degrees.
An angle 𝜃,which is the angle of elevation formed by the line of sight of an observer and the horizontal line of an object above or below the horizontal, can be calculated using the following formula:
Tanθ=OATanθ=\frac{O}{A}Tanθ=AO
sinθ=OA\sinθ=\frac{O}{A}sinθ=AO
cosθ=OA\cosθ=\frac{O}{A}cosθ=AO
45 degrees
60 degrees
90 degrees
It is done.