Mathematics
In the given figure, O is the center of the circle. PT and PQ are tangents to the circle from an exterior point P. If angle TPQ = 70°, find the angle TRQ.
Related Questions
Five cards Ten, Jack, Queen, King and Ace of diamonds are shuffled face downwards. Then one card is picked at random.
(i) What is the probability that the card picked is queen ?
(ii) If a king is drawn first and put aside, what is the probability that the second card picked up is the ace ?
The weights of 150 mangoes were recorded as given below :
Weight in gms Number of mangoes 160-170 15 170-180 24 180-190 30 190-200 36 200-210 24 210-220 12 220-230 9 Calculate the mean weight (to the nearest gram) by step-deviation method.