Question

A trapezium with an area of 5100 cm2 has the perpendicular distance between the two parallel sides of 60m.if one of the parallel side be 40m.find the length of the other side

Answer 1

let one parallel sides x
other side=40
height = 60
area=5100
one parallel side= 1/2(a+b)h
1/2 (x +40)*60=5100
x+40= 170
x= 170-40
x= 130

Answer 2

area=5100cm2

height=60m

two parallel sides=x(m) , 40m.

therefore,

length of other side=1/2(a+b)*h

5100=1/2(x+40)*60

170=x+40

x=170-40=130

=130.

Hence proved by hari2056