A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?
Dadabhai Naoroji (4 September 1825 to 30 June 1917), known as the Grand Old Man of India, was a Parsi intellectual, educator, cotton trader, and an early Indian political and social leader.
In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase. One who values practicality