Angles of elevation and depression

1
Angles of elevation and depression

• Trigonometry

2
Angles of elevation and depression

• 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.

3
Angles of elevation and depression

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

4
Angles of elevation and depression

• 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.

5
Angles of elevation and depression

• A pupil is 2 meters tall.
• He walks 30 meters
• away from the High
• School main building.
• The angle of elevation
• of the top of
• the building
• is 29º.
• Find the height
• of the building.

6
Angles of elevation and depression

• A cliff is 200m high.
• The angles of
• depression from the
• top of the cliff
• of two
• boats at
• sea are
• 29º and 33º
• respectively.
• How far apart are the boats.