6. Five marks exercise problems IV

The sides of the triangular ground are \(22 \ m\), \(120 \ m\) and \(122 \ m\). Find the area and cost of levelling the ground at the rate of \(₹ 20\) per \(m^2\).

 

 

Area of the ground \(=\)  \(m^2\)

 

Cost of levelling the ground \(=\) \(₹\)