5. Five marks exercise problems III

A farmer has a field in the shape of a rhombus. The perimeter of the field is \(400 \ m\) and one of its diagonal is \(120 \ m\). He wants to divide the field into two equal parts to grow two different types of vegetables. Find the area of the field. of the field is \(400 \ m\) and one of its diagonal is \(120 \ m\). He wants to divide the field into two equal parts to grow two different types of vegetables. Find the area of the field.

 

The area of the field \(=\)  \(m^2\)