Section 9.3 Angles of Elevation and Depression Mr. Thompson

Vocabulary Angle of Depression and Angle of Elevation are Equal Angle of Depression Angle of Elevation Horizontal Line

#1 Identifying Angles of Elevation and Depression

Look at page 484 #’s 1-8

Remember!...The difference between Altitude = Height, Vertical Distance Line of Sight Distance Horizontal distance

You sight a rock climber on a cliff at a 32 o angle of elevation. The horizontal ground distance to the cliff is 1000 ft. Find the line of sight distance to the rock climber ft x

From a point 65m from the foot of a chimney, the angle of elevation of the top of the chimney is 52º. Find the height of the chimney. 65m 52º

85 m 34º  From the top of a cliff, the angle of depression of a boat in the water 85mfrom the foot of the cliff is 34º. Find the height of the cliff.

The Burj Tower!!!!!!! 3.From a point 44m away from the foot of a tower, the angle of elevation of the top of the tower is 64º. Find the height of the tower. 100 meters 83º

A plane is approaching the airport at 10,000ft altitude. It needs to land at an angle of descent of 14°. How far Away should the plane begin its descent?

Ol’ Ben is flying his kite. He looks at the kite with an angle of elevation of 70º. The line of sight distance is 100 ft. He is standing 50 ft from the kite. Ben’s eyes are 5.5 ft high. What is the altitude of the kite?

Classwork Page , 34 Homework Assignment.