Question

A boy 1.4m tall stood 10m away from a tree of height 12m. calculate, correct to the nearest degree, the angle of elevation of the top of the tree from the boy's eyes
eyes are not on top of head ...

tan(θ) = (12 - 1.4) / 10
Answer
The height of the tree above the boy is 12-1.4=10.6
Using tan#= opposite /adjacent where # is the angle of elevation
tan#=10.6/10
hence #= 46.67 degrees

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