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Let the height of the flagpole be h meters, and let the distance of point A from the base of the pole be x meters. tan 30° = h/x. 1/√3 = h/x. h = x/√3. From the triangle formed with the 60° angle, tan 60° = h/(x - 20). √3 = h/(x - 20). h = √3(x - 20). Equating the two expressions for h: x/√3 = √3(x - 20). Multiply through by √3: x = 3(x - 20). x = 3x - 60. 2x = 60. x = 30 meters. Substitute x into h = x/√3: h = 30/√3 = 10√3 meters. Correct answer: a) 10√3 meters
Padma Shri, Padma Bhushan and Padma Vibushan awardee, Guru Kelucharan Mohapatra, was instrumental in reviving which of the following classical dances?
Allocation to the rural roads construction scheme Pradhan Mantri Gram Sadak Yojana (PMGSY) is Rs __________ crore for the fiscal year 2022-23.
...Which bacteria was discovered by Barry Marshall and Robin Warren that colonises the human stomach and causes chronic superficial gastritis ulcers?
Machines, tools and implements, and buildings are examples of which type of goods?
Who among the following had been appointed as Managing Director and Chief Financial Officer of the World Bank in July 2019?
Which river has tributaries by the name of Dri, Mathun, Talon, Eme, Ahi, Emra and Awa?
The blue colour of the sky is due to the:
When is the World's Children Day been celebrated?
Who won the 2023 FIFA Women's World Cup which was played in Sydney ?
Consider the following reaction:
2H₂ (g) + O₂ (g) → 2H₂ O(l)
Which one of the following statements about the reaction given above is correct?
