Question

lenght of the fence of a trapezium shaped field abcd is 120m .if bc 48 m,cd 17 m and ad 40m,find the area of the field .side ab is perpendicular to the parrellel side ad and bc

Answer 1

length of fence =perimeter=ab+bc+cd+da
120=ab+48+17+40
120-105=ab
ab=15m
ab is height to ad and bc
area=(1/2)*(sum of ∥ sides)*height
=(1/2)*(ad+bc)*ab
=(1/2)*(40+48)*15
=(1/2)*(88)*15
=44*15=660 m²