S K Gupta and Anubhuti Gangal Solutions for Chapter: Volume and Surface Area of Solids, Exercise 8: Chapter Assessment

Volume of a cylinder $=$_____

The volume of a cylinder whose area of the base is $35 {\mathrm{cm}}^2$ and its height is $12 \mathrm{cm}$ is $210 {\mathrm{cm}}^3$.

The surface area of a cube is $486 {\mathrm{cm}}^2$. Its edge is

A beam $9 \mathrm{m}$ long, $40 \mathrm{cm}$ wide and $20 \mathrm{cm}$ high is made up of iron which weighs $50 \mathrm{kg}$ per cubic metre. The weight of the beam is

The dimensions of a brick are $24 \mathrm{cm}\times 12 \mathrm{cm}\times 8 \mathrm{cm}$. How many bricks will be required to build a wall $24 \mathrm{m}$ long, $8 \mathrm{m}$ high and $60 \mathrm{cm}$ thick, if $10\%$ of the wall is filled with mortar?

If the capacity of a cylindrical tank is $1848 {\mathrm{m}}^3$ and the diameter of its base is $14 \mathrm{m}$, then the depth of the tank is

An open box is made of wood $3 \mathrm{cm}$ thick. Its external length, breadth and height are $1.46 \mathrm{m}, 1.16 \mathrm{m}$ and $8.3 \mathrm{dm}$ respectively. What is the cost of painting the inner surface of the box at $50 \mathrm{p}$ per $100 {\mathrm{cm}}^2$

$66 {\mathrm{cm}}^3$ of silver is drawn into a wire of $1 \mathrm{mm}$ in diameter. What is the length of wire in metres?