WAEC - Mathematics (1991 - No. 28)

The angle of elevation of the top of a tree 39m
away from a point on the ground is 30o. Find the height of the tree
39√3m
13√3m
13/\(\sqrt{3}\)m
13/3\(\sqrt{3}\)m
\(\sqrt{3}\)/13m

Explanation

x/25 = tan 30o
x = 39 x 1/√3 = 13√3m

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