Angles of elevation and depression

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Objectives Use trigonometry to solve problems involving angle of elevation and angle of depression.

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Angles of elevation and depression Trigonometry

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. 65m 52º

 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. 85 metres 34º cliff boat 

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. 44 metres 64º T O W E R

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. 30 metres 2m   29º

Angles of elevation and depression 33º 29º  boat 1 boat 2 CL I F F F 200m 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.