Find the distance between the two parallel sides of a trapezium if the area of the trapezium is 350 m² and the two parallel sides are 25 m and 10 m.

Given: Area of trapezium = 350 m²

Two parallel side are 25 m and 10 m.

Let d be the distance between two parallel sides.

Area of trapezium = $\frac{1}{2}$ × (Sum of parallel sides) × (Distance between parallel sides)

⇒ 350 = $\frac{1}{2}$× (25 + 10) × d

⇒ 700 = 35 × d

⇒ d = 20 m

Therefore, the distance between two parallel sides is 20 m.