Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Mensuration, Exercise 3: CHAPTER-END EXERCISES

Each side of a regular pentagon is $8 \mathrm{c}\mathrm{m}$. Its perimeter is _____.

A square garden is $18 \mathrm{m}$ long. How much wire is required for fencing it?

The perimeter of a square is $80 \mathrm{m}$. Find the side of this square. Also, find its area.

The area of a square field is $324 {\mathrm{m}}^2$. Find the perimeter in $\mathrm{cm}$.

What is the perimeter of a square having area $144 {\mathrm{cm}}^2$?

The perimeter of a square is $16 \mathrm{cm}$. What is its area?

What happens to the area of a rectangle, if its length is doubled, keeping the breadth unchanged?

The perimeter of a rectangle is $24 \mathrm{cm}$. If its length is $8 \mathrm{cm}$, then find its breadth.