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.
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 among the following person is the mother of D?
R is the mother of T and V is the son of D. G is the brother of R. If T is the sister of V, how is D related to G?
If P+Q means ‘P is the daughter of Q’, P-Q means ‘P is the wife of Q’, P×Q means ‘P is the father of Q’, P÷Q means ‘P is the son of Qâ€...
M has two sons and one daughter. R and V are the two married sons of M. Q is the son of R. U is the daughter of N. P is married to R. N is married to V....
How G is related to A?
A is the son-in-law of P and is the brother-in-law of T who is the brother of V. V is the daughter of P. How is T related to P? Â
T is _____ of ______.
How is N related to the wife of S?
Who among the following person is the niece of D?
Which among the following is/are the husband-wife pair?
...