Abi wants to buy a trapezium shape field. Its side along the river is parallel to and twice the side along the road. If the area of the field is 47400 \(m²\) and perpendicular distance between the two parallel side is 100 \(m\). Find the side length of the road and river.
1. Length of the road \(=\) \(m\).
2. Length of the river \(=\) \(m\).