Question

A field in the form of a parallelogram has base 15m and altitude 8m find the cost of watering the field at the rate of RS 20 per square metre

Answer 1

area = 15*8 = 120 m²
cost = 20*120 = 2400 rs

Answer 2

Area of //gm=b×h
=15×8
=120 m^2
Then,
Cost of watering at rs 20 per m^2=120×20
=Rs 2400
Hope it helps u.