A cube of pi cm edge is melted and moulded

A cube of pi cm edge is melted and moulded Three golden cuboids of sides 9cm, 8cm, 125cm are melted to form a big cu lg cube ? The volume ofthree cubic solids are 125, 64 and 27 cm3. If these are melt to form a big cubic solid, s the edge of the cubic solid formed ? In a swimming pool measuring 90m x 40m, 150 men can take a dip. Ifthe average displacement a man is 8m3. then find rise in water level. In a right angled triangle the sides including the right angles are 3cm and 4cm. Ifthe triangle is rotated 4cm, then find the volume of the solid thus generated ? wire Of I •8cm diameter is obtained from a solid sphere of 9cm radius. Find the length of wire 2 ow many balls of 6cm radius can be moulded out of a solid cylinder of 4cm radius and 90cm eight. A sphere and a cube have equal surface area. Find the ratio of the volume of the sphere to that of the A cube of rt cm edge is melted and moulded in cones of radius and height equal to llcm. Then number of cones ? V. The radius and height ofa cone are 3cm and 2cm respectively. How many balls of lcm diameter can be moulded out of the cone ? MARKS QUESTIONS "O. Ifthe slant height of the frustum of the cone is 10cm and the perimeter of its circular base are 19cm a 28cm respectively, find its C.S.A. . The slant height of the frustum of the cone is 5cm and the difference between the radii of its two Cire