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
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
説明
x = 39 x 1/√3 = 13√3m