Angles of Elevation and Depression

Front

What is the angle of elevation?

Back

The angle formed by a horizontal line and a line of sight to a point above.

Front

What is the angle of depression?

Back

The angle formed by a horizontal line and a line of sight to a point below.

Front

What is the line of sight?

Back

The straight line along which an observer looks to see an object.

Front

Identify the angle of depression of B from E.

Back

∠FEB

Front

Identify the line of sight in the given illustration.

Back

AB

Front

If a person is standing on a cliff and looks down at an object, what type of angle are they measuring?

Back

Angle of Depression.

Front

If a person looks up at an object, what type of angle are they measuring?

Back

Angle of Elevation.

Front

What is the relationship between angles of elevation and depression?

Back

They are complementary angles when measured from the same horizontal line.

Front

Calculate the distance between two ships if the angle of depression to the first ship is 9 degrees and to the second ship is 5 degrees from a height of 380 meters.

Back

1944.2 m.

Front

What is the formula to find the distance using angle of depression?

Back

Distance = height * tan(angle of depression).