Question

11. Find the cost of watering a trapezoidal field whose parallel sides are 10 m and 25 m respectively, the
perpendicular distance between them is 15 cm and the rate of watering is 4 per m²?​

Answer 1

Area of trapezoidal field = 1/2 x(sum of parallel sides)x(distance between them)
Area = 1/2x (10+25)x15
=262.5 meter square
Cost = Rs 4/ meter square
=Rs 4x 262.5
=Rs 1050