Question
Two ships are on opposite sides in front of a lighthouse
in such a way that all three of them are in line. The angles of depression of two ships from the top of a lighthouse are 30° and 60°. If the distance between the ships is 230√3  m, then find the height (in m) of the lighthouse.Solution
Let the length of the lighthouse = BD m Use this property - When the angles of a triangle are 30 ° ,60 ° , and 90° respectively, the ratio of the opposite sides is 1: √ 3:2. When Triangle BDC – The opposite side of angle 30° = 1 Similarly - angle 60° =     √ 3, and angle 90° =2 Triangle ABD -opposite side of angle 30 ° =BD = 1= √ 3……. means √ 3times. so -opposite side of angle60° =AD = √ 3 = √ 3× √ 3 =3 now – AD + DC = AC 4= 230 √ 3 1= (230 √ 3)/4 Now height = BD = √ 3= (230 √ 3/4) × √ 3= (230 ×3)/4 =690/4 =172.5meter
Maximum number of partners allowed in a partnership firm is:
A Red Herring Prospectus does not the include information related to __________
The doctrine of "Ultra Vires" is related to:
Which of the following is an exception to the doctrine of privity of contract rule _______________?
Which challenge was posed by Over-the-Top (OTT) services to the traditional Indian telecom services?
A Private Company may not issue securities
A person who is not a party to a contract can sue upon it if:
A contract contains an arbitration clause. A dispute arises but one party sues in civil court. What should the court do?
A contract with a minor is:
As per the Companies Act, 2013 a Company means_____________
