The rectangle is 84 m wide, which is 6 m less than its length. Find the perimeter and area of this rectangle.

In order to calculate what the area is and what the perimeter of the rectangle is, you first need to know its length and width.

From the problem statement, we know that its width is 84 cm, which is 6 cm less than its length. Therefore, we can find out what the length of the rectangle is.

84 + 6 = 90 cm.

Knowing both sides of the rectangle, we calculate its perimeter.

84 * 2 + 90 * 2 = 168 + 180 = 348 cm.

Next, we find the area of this rectangle.

84 * 90 = 7560 cm ^ 2.

Answer: The perimeter is 348 cm, the area is 7560 cm ^ 2.