Question
The angle of elevation of the top of a building from a
point on the ground is 30° and moving 40 meters towards the building it becomes 60°. The height of the building is?Solution
Let AB bee the height of the building. In ∆ACD and ∆ABC ∠ACB = ∠CAD + ∠CDA 60° = ∠CAD + 30° ∠CAD = 30° So, AC = CD AC = 40 m cosec 60° = AC/AB 2/√3 = 40/AB AB = 20√3
Who has assumed charge as the Chairman and Managing Director (CMD) of Bharat Electronics Limited (BEL)?
On which date is International Literacy Day celebrated?
Consider the statements about INS Chennai:
1. Indian Navy recently responded to a hijacking attempt on vessel MV Lila Norfolk.
2. It is th...
WWF-India’s Central Indian Satpuda Maikal Landscape (SML) sprawls across 19 districts of which of the following states?
A- Madhya PradeshÂ
...______ state is aiming to lead the Asia in the gaming and animation sector at the Indian Gaming Convention, 2024?
What is the name of the week-long program launched by PM Modi on September 30, 2023, to enhance governance at the block level?
Who is the writer of the book 'Him Taringini'?
Recently, a farmer in North Goa’s found copper coins in a pot which were believed to be minted in Goa under Colonial rule?
Which company was responsible for delivering INS Nirdeshak to the Indian Navy?
A recycling plastic plant has been established in Uttarakhand at which place?
Relevant for Exams:
