The rectangle is 9m wide and 12m long. Find the width of the second rectangle if its length is 18m

The rectangle is 9m wide and 12m long. Find the width of the second rectangle if its length is 18m, and the areas of these rectangles are equal.

1) First of all, we find the area of the first rectangle with sides of 9 m and 12 m, multiplying the length of the rectangle by its width:
S = 9 * 12 = 108 (m²).
2) By the condition of the problem, the area of the first rectangle is equal to the area of the second rectangle, that is, the area of the second rectangle is 108 m². Find the width of the second rectangle if its length is 18 m.To do this, divide the area by the length:
108: 18 = 6 (m).
Answer: The width of the second rectangle is 6 m.