In a trapezium ABCDABCD , OO is the point of intersection of ACAC and BDBD. AB||CDAB||CD and AB=2×CDAB=2×CD. If the area of ΔAOB=96cm2ΔAOB=96cm2, find the area of ΔCODΔCOD.
A tangent PQPQ at a point PP of a circle of radius 14cm14cm meets a line through the center OO at a point QQ such that OQ=22cmOQ=22cm. What is the length of PQPQ ?
A can is in the shape of a frustum of a cone of height 45cm45cm. The diameters of its two circular ends are 14cm14cm and 11cm11cm. Find the capacity of the can.(Use π=227π=227)
According to a meteorological report for 900 consecutive days in a year, its weather forecasts were correct 441 times.
Out of these days, one day is chosen at random.
What is the probability that the weather forecast was correct on that day?
A statue 1m tall stands on the top of the pedestal. From a point on the ground, the angle of elevation of the top of the statue is 45∘ and from the same point the angle of elevation of the top of the pedestal is 30∘. What is the height of the pedestal?