Class IX The slant height of a right circular cone is 10 m and its height is 8 m. Find the area of its curved surface. 30 m2 40 m2 60 m2 80 m2 The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height. 3 : 7 7 : 3 6 : 7 7 : 6 A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is: 90 cm . 1 dm 1 m D. 1.1 cm A metallic sheet is of rectangular shape with dimensions 48 m x 36 m. From each of its corners, a square is cut off so as to make an open box. If the length of the square is 8 m, the volume of the box (in m3) is: 4830 5120 6420 8960 50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 m3, then the rise in the water level in the tank will be: 20 cm 25 cm 35 cm 50 cm Do you really want to submit this quiz? Cancel Submit Quiz