The perimeter of the rectangle is 46.8 m.Find the area of the rectangle if the width is 12.4 m.

The perimeter of a rectangle is calculated as the sum of the length and width times two. Knowing the perimeter and width, we calculate the length of the rectangle, take it for x m.
2 * (x + 12.4) = 46.8
x + 12.4 = 46.8: 2
x + 12.4 = 23.4
x = 23.4-12.4
x = 11.
We calculate the area of a rectangle using the formula the product of its length and width.
1) 11 m * 12.4 m = 136.4 m2 area of the rectangle.
Answer: the area of the rectangle is 136.4 m2.