length of the fence of a trapezium shaped field ABCD is 120m .IF BC 48m ,CD 14 m and AD 40 m, find area of thea field.
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fence has covered from surrounding of trapezium so its perimeter is 120m
to find ab
120=ab+bc+cd+ad
120=ab+48+14+40
120=ab+102
ab=120-102
ab= 1 8
draw a line perpendicular to ab
so the area of the trapezium will be
640c.m.sq
to find ab
120=ab+bc+cd+ad
120=ab+48+14+40
120=ab+102
ab=120-102
ab= 1 8
draw a line perpendicular to ab
so the area of the trapezium will be
640c.m.sq
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