Mohan wants to buy a trapezium shaped field.Its side along the river is parallel and twice the side along the road.If the area of this field is 10500 m2 and the perpendicular distance between the two parallel sides is 100 m,find the length of the side along the river.
Area of the trapezium shaped field=10500 m2 and perpendicular distance between them (h)=100 m.
∴Sum of parallel sides=Area×2h=10500×2100=210 m
Let one side=x
Then second side=2x
∴ x+2x=210⇒3x=210⇒x=2103=70∴ Length of parallel side along river=2x=2×70=140 m