The length of the rectangle is 4 times its width, and the perimeter is 60 m. Find the area of the rectangle.

The perimeter of the rectangle is the sum of the lengths of the sides. Let’s compose and solve the equation, taking for “x” – the width of the rectangle, for “4x” – the length of the rectangle:

2 * (x + 4x) = 60

10x = 60

x = 6 m

The width is known. Let’s find the length of the rectangle:

6 * 4 = 24 m.

The area of a rectangle is equal to the product of length and width, we find it:

6 * 24 = 144 m²

Answer: The area of the rectangle is 144 m2

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