There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

The length of the boundary of Lake B in the drawing is _____ $\mathrm{km}$ (use a thread to find out).

There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

The actual boundary of Lake A is _____ $\mathrm{km}$ long.

There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

The actual boundary of Lake B is _____ $\mathrm{km}$ long.

There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

A longer boundary around the lake will help more birds to lay their eggs. So which lake should be kept for birds? Which lake should be used for boats?

There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

Find the area of Lake B on the drawing in $\mathrm{square} \mathrm{cm}$? What is its actual area in $\mathrm{square} \mathrm{km}$?

The King was very happy with carpenters Cheggu and Anar. They had made a very big and beautiful bed for him. So as gifts the king wanted to give some land to Cheggu, and some gold to Anar. King’s Story Cheggu was happy. He took $100 \mathrm{m}$ of wire and tried to make different rectangles. He made a $10 \mathrm{m}\times 40 \mathrm{m}$ rectangle. Its area was $400 \mathrm{sq}. \mathrm{m}$. So he next made a $30 \mathrm{m}\times 20 \mathrm{m}$ rectangle.

What is its area? Is it more than the first rectangle?

Anar tried many ways to make a boundary for $800 \mathrm{sq}. \mathrm{m}$ of land. He made rectangles A, B and C of different sizes. How much gold wire will he get for these rectangles?

The length of gold wire for A $=$_____ $\mathrm{m}$.

Anar tried many ways to make a boundary for $800 \mathrm{sq}. \mathrm{m}$, of land. He made rectangles A, B and C of different sizes. How much gold wire will he get for these rectangles?

The length of the gold wire for B $=$_____ $\mathrm{m}$.

Anar tried many ways to make a boundary for $800 \mathrm{sq}. \mathrm{m}$ of land. He made rectangles A, B and C of different sizes. How much gold wire will he get for these rectangles?

The length of gold wire for C $=$_____ $\mathrm{m}$.