The sides of a triangular ground are 5mt, 7mt and 8mt respectively. Find the cost of levelling the ground at the rate of Rs10. Per m. square

Assume that the height, base and the hypothesis of the triangular ground is 5mt, 7mt and 8mt respectively:

Area of the triangular ground
= (5*7/2) m^2
=35/2m^2
=17.5m^2

Cost of the levelling ground
= Rs(17.5*10)
= Rs 175

The levelling ground costs 175Rs.