Question
From a point located x meters away from the base of a
tree, the angle of elevation to the top of the tree is 60 ∘ . If the tree is 54 meters tall, determine the distance x from the point to the base of the tree.Solution
In the given figure, let points 'A' and 'B' represent the top of the tree and the base of the tree, respectively and let 'C' represents the point on the ground that is 'x' metres away from the base of the tree (BC = x). In right triangle ABC tan 60o = (AB/x) Or, (54/x) = √3 So, x = 54 ÷ √3 = 18√3 metres
147 138 120 93 ? 12
...48 61 76 94 116 ?
21 23 26 ? 39 51
...The following numbers form a series followed by a (?). Find the odd one out first and then find that what will come in place of the question mark (?) ac...
In the question, three series I, II and III are given. Find the value of x, y and z to establish the correct relation among them and choose the correct...
8, 9, 15, ?,82.5, 250.50
There are three series given below which are following with the same pattern.
Series I: 9, 10, 32, 163, 1145
Series II: 4, B, C, D, E
...18 113 559 2247 6721 13451
...48 83 118 153 188 ?
9256 6844 4888 3350 2152 1276
...