Abhishek Chauhan and Vivek Singhal Solutions for Chapter: Mensuration, Exercise 3: Topic Exercise 11.3

The base radius and height of a right circular cylinder are $5 \mathrm{cm}$and $10 \mathrm{cm}$, respectively. If the surface area is $k {\mathrm{cm}}^2$, then find the value of $k$. (Use$\mathrm{\pi }=3.14$).

If the volume of a right circular cylinder of length $80\mathit{ }\mathrm{cm}$ and diameter of the base $14 \mathrm{cm}$ is $k {\mathrm{cm}}^3$, then find the value of $k$. (Use $\mathrm{\pi }=\frac{22}{7}$)

The diameter of the base of a right circular cylinder is$14 \mathrm{cm}$, while its length is $40 \mathrm{cm}$. If the total surface area of the cylinder is $k {\mathrm{cm}}^2$, then find the value of $k$. 

If the curved surface area of a right circular cylinder having length$160 \mathrm{cm}$ and radius of the base $7\mathrm{cm}$ is $k {\mathrm{cm}}^2$, then find the value of $k$. 

If a rod of $2 \mathrm{cm}$ diameter and $30 \mathrm{cm}$ length is connected with a wire of $3 \mathrm{m}$ length and diameter$1 \mathrm{cm}$. If the total surface area is $k {\mathrm{cm}}^2$, then find the value of $k$. (Use$\mathrm{\pi }=3.14$).

If the height of a solid cylinder of radius$5 \mathrm{cm}$ and total surface area is $660 {\mathrm{cm}}^2$ is $k \mathrm{cm}$, then find the value of $k$.

The whole surface area of a rectangular block is $8788 {\mathrm{cm}}^2$. Given the ratio of length, breadth and height is $4:3:2$. If the length is $k \mathrm{cm}$, then find the value of $k$. 

How many cubes of $3 \mathrm{cm}$ edge can be cut-out of a cube of $18\mathit{ }\mathrm{cm}$ edge ?