Question

A field is in the shape of a trapezium of parallel sides 11 m and 25 m and of non-parallel sides 15 m and 13 m. Find the cost of watering the field at the rate of 5 paise per 500 cm?​

Answer 1

Answer:

sides of the trapezium are 11m=1100cm, 25m=2500cm, 15m=1500cm, 13m=1300cm

so the perimeter of the trapezium will be = 1100+2500+1500+1300=6400cm

it costs 5 paise per 500cm

so per 1 cm it will be =(5/500) paise

for 6400cm it will cost= (5/500)×6400= 64 rs