Rahul Sofat Solutions for Chapter: Mensuration, Exercise 4: REVIEW EXERCISES

A circle can always be inscribed in a _____ polygon.

If the area of a square is given in $\left({\mathrm{cm}}^2\right)$, then what will be the unit of its side?

If the side of a rhombus is given in metres $\left(\mathrm{m}\right)$, in what unit will its perimeter be measured? What will be the perimeter?

If perimeter of a field is $2 \mathrm{km}$, how many metres $\left(\mathrm{m}\right)$ of barbed wire is required to fence it?

If the area of a square is given in ${\mathrm{km}}^2$, by what factor should it be multiplied to convert it into ${\mathrm{m}}^2$?

What happens to the area of the rectangle if the length is doubled and breadth remains the same?

A room is $5 \mathrm{m}$ $10 \mathrm{cm}$ long and $4 \mathrm{m} 90 \mathrm{cm}$ wide. How much carpet is required to cover the room? The cost of the carpet, if $1 \mathrm{sq}.\mathrm{m}$ of carpet costs $₹600$ is $₹\mathrm{k}$. Find the value of $\mathrm{k}$.

The cost of laying grass in a rectangular park at the rate of $₹10$ per $\mathrm{sq}.\mathrm{m}.$ is $₹4800$. Find the cost of constructing its boundary at the rate of $₹800$ per $\mathrm{m}$ if the park is $20 \mathrm{m}$ wide.