Question
A man observes the top of a tower at an angle of
elevation of 45°. He walks 50 meters towards the tower, and the angle of elevation becomes 60°. What is the height of the tower?Solution
Let the height of the tower be h, and the initial distance from the man to the tower be d. From the first observation: tan(45°) = h/d, so h = d. From the second observation: tan(60°) = h/(d - 50), so h/(d - 50) = √3. Substitute h = d into the second equation and solve to get h = 25(√3+3) meters. Correct option: a) 25(√3+3) meters
Which moon is the smallest in the solar system?Â
Consider the following statements about Gemini AI model:Â
1.   Recently, Google announced the launch of its latest, most powerful AI model, ...
Compressed natural gas (CNG) primarily consists of which component?
Which set only includes biodegradable items?
Bell metal is an alloy of–
What does 'Hoar Frost' directly convert from?
Choose the correct statements regarding the process of photosynthesis.Â
Why are mud houses more thermally comfortable than brick houses?
Which pair of following is of Copper alloys?
Who discovered Penicillin?