The perimeter of a rectangular land is 120 meters, of which the width ratio is 13 meters. The area of this land is () square meters

The perimeter of a rectangular land is 120 meters, of which the width ratio is 13 meters. The area of this land is () square meters

The perimeter of a rectangular land is 120 meters, of which the width ratio is 13 meters. The area of this land is () square meters
If the perimeter is 120 meters, the sum of length and width is 60 meters, and the width ratio is 13 meters. It is easy to find that the length is (60 + 13) / 2 = 36.5 meters, and the width is 36.5-13 = 23.5 meters
, with an area of
36.5 * 23.5 = 857.75m2

For a rectangular grassland, the ratio of its length to width is 4:3, and the known width is 15 meters. How many square meters is the area of this grassland?

For a rectangular grassland, the ratio of its length to width is 4:3. It is known that its width is 15 meters, so its length is 20 meters, and its area is 20 * 15 = 300 square meters

A piece of rectangular paper is 20 cm long and 15 cm wide. How many square decimeters is its area

3 square decimeters