From the foot of a building I have to look 22 upwards to sight the top of a tree. From
Chapter 9, Problem 8(choose chapter or problem)
From the foot of a building I have to look 22 upwards to sight the top of a tree. From the top of the building, 150 metres above ground level, I have to look down at an angle of 50 below the horizontal to sight the tree top. a How high is the tree? b How far from the building is this tree?
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