Final answer:
To find the length of the rectangle with a given area and width, use the formula A = L * W.
Step-by-step explanation:
To find the length of the rectangle, we can use the formula A = L * W, where A is the area, L is the length, and W is the width. We know that the area is 2400 m² and the width is 30 m, so we can substitute these values into the formula: 2400 = L * 30. To solve for L, we can divide both sides of the equation by 30: L = 2400 / 30. Simplifying the expression, we find that L = 80 m.
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