The length of the rectangle is 54 mm and the width is 24 mm less. Calculate the perimeter and area of this rectangle.

The area of the rectangle is calculated by the formula:

S = a * b.

Let’s find this value for such a figure, provided that the length is 54 mm, and the width is 24 mm shorter:

S = 54 * (54 – 24). According to the order of performing mathematical operations, first of all we find the values in brackets:

S = 54 * 30 = 1620 mm².

The perimeter is determined by the formula:

P = 2a + 2b. Let’s substitute the measurements:

P = 2 * 54 + 2 * 30 = 108 + 60 = 168 mm.