Question

a field is in the shape of a Trapezium as shown here. its parallel sides are 14 metre and 20 metre and the distance between them is 18 metres. find the cost of ploughing the field at the rate of rupees 10 per metre square

Answer 1

Just find out its area
Area = 0.5*(40+20)*18
540
Cost of ploughing = 540*10
=5400rs

Answer 2

area of a trapezium =h(sum of the parallel sides/2
= 18(20+40)/2
= 9*60=540m²
cost for 540m²= 540*10= 5,4000Rs