16. The width of a rectangle is two-thirds its length. If the perimeter is 180 metres, find tdimensions of the rectangle.7. An altitude of a triangle is five-thirds the length of its corresponding base. If the altitudeincreased by 4 cm and the base decreased by 2 cm, the area of the triangle remains tisame. Find the base and the altitude of the triangle.8. Two angles of a triangle are in the ratio 4:5. If the sum of these angles is equal to the thiangle, find the angles of the triangle.) A steamer goes downstream from one port to another in 9 hours. It covers the samdistance upstream in 10 hours. If the speed of the stream be 1 km/h, find the speed ofsteamer in still water and the distance between the ports.The distance between two stations is 300 km. Two motorcyclists start simultaneously frethese stations and move towards each other. The speed of one of them is 7 km/h more ththat of the other. If the distance between them after 2 hours of their start is 34 km, findspeed of each motorcyclist. Check your solution.Divide 150 into three not​