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Let us consider the height of the tower as AB, the distance between the foot of the tower to the point on the ground as BC. In ΔABC, trigonometric ratio involving AB, BC and ∠C is tan θ. tan C = AB/BC tan 30° = AB/30 1/√3 = AB/30 AB = 30/√3 = (30 × √3) / (√3 × √3) = (30√3)/3 = 10√3 Height of tower AB = 10√3 m.
'P' increases the price of a shirt by 20%. If he reduces the discount percentage from 15% to 10%, his profit rises by Rs. 2400. Determine the profit or ...
240.11% of 145.09 – 169.912% of 159.89 + 13.12 × √402 = ?
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 mete...
Train X is moving at a relative speed of 288 km/hr with respect to Train Y, which is approaching from the opposite direction. The two trains completely ...
Find the value of {(3125)(n/5) × 5(2n + 1)}/ {25n × 5(n - 1)}
A manufacturing firm produces three products: P, Q, and R. What is the total revenue generated from these products in a month?
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...Determine how many composite numbers exist between 61 and 99?
If the mean of four observations is 20 and when a constant C is added to each observation the mean becomes 22 the value of C is –
A man travels 60 km at a speed of 30 km/h and then travels 90 km at a speed of 60 km/h. What is his average speed for the entire journey?
Pipe X can fill a tank on its own in 12 hours, while Pipe Y can fill the same tank individually in 20 hours. Both pipes X and Y o...