Question

A jewel box ( see fig.) is in the shape of a cuboid of dimensions 30 cm x 15 cm x10 cm surmounted by a half part of a cylinder as shown in the figure. Then the volume of the
box is​

Answer 1

Answer:

The shapes provided lead to the following definitions of ‘Combined Solid’.

A combined solid is said to be a solid formed by combining two or more solids.

The concept of combined solids is useful in the fields like doll making, building construction, carpentry, etc.

To calculate the surface area of the combined solid, we should only calculate the areas that are visible to our eyes. For example, if a cone is surmounted by a hemisphere, we need to just find out the C.S.A. of the hemisphere and C.S.A. of the cone separately and add them together. Note that we are leaving the base area of both the cone and the hemisphere since both the bases are attached together and are not visible.

But, the volume of the solid formed by joining two basic solids will be the sum of the volumes of the individual solids

Answer 2

Answer:

volume of cuboid = 4500

first given the dimensions of the cylinder then we can find the volume of the box