13. Application of Heron's formula

Sindu has a piece of land which is in the shape of a rhombus. She wants to harvest onion and potato in the field. She divided the land into two equal parts. If the perimeter of the land is 440 \(m\) and one of the diagonals is 140 \(m\), how much area of the land will be required to crop Potato . And find the total area of the land.

 

Area of the land to crop onion \(=\) $i\sqrt{i}$ \(m^2\)

 

Total area of the land \(=\) $i\sqrt{i}$ \(m^2\)