Angle of Elevation
Angle of Elevation: the angle to which an observer would have to
raise their line of sight above a horizontal line to see an object
Angle of Elevation
Angle of Depression: the angle that an observer would have to
lower their line of sight below a horizontal line to see an object
Angle of Elevation
Identify the angle of elevation and the angle of
depression.
What can be concluded about the angle of
elevation and the angle of depression? Why?
Angle of Elevation
Describe each angle as it relates to the situation below
Angle of Depression
An airplane is flying 3500 ft above the ground
and begins a 2°descent to land at an airport.
How many miles from the airport is the
airplane when it starts its descent?
3500ft
2°
x
2°
Angle of Elevation
A surveyor stands 200ft from a building to measure
its height with a 5ft tall theodolite. The angle of
elevation to the top of the building is 35°. How tall
is the building.
Angles of elevation and depression
A campsite is 9.41 miles from a point directly below
the mountain top. If the angle of elevation is 12º from
the camp to the top of the mountain, how high is the
mountain?
Homework #13
Pg 447 #1-18
(help with #1-8: use Ex 1 in
book!!)