How i solve this tough question of ncert class 10 chapter surfaces areas and volumes . Find the easiest solution of exercise 13.4 question number 1 . Sir please help me to solve this tricky question also give me the best solution of this question.A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass.