The length of the rectangle is 30cm 5mm, and the width is 10cm 2mm less. Calculate the perimeter and area of the rectangle.

If the width of the rectangle is 10 cm and 2 mm less than the length equal to 30 cm 5 mm, therefore, it is 20 cm 3 mm.

Let’s define the sum of all sides of such a figure. The perimeter is calculated using the formula:

P = 2a + 2b.

Let’s represent the sides of the rectangle in one unit of measurement, write the expression:

P = 2 * 30.5 + 2 * 20.3 = 61 + 40.6 = 101.6 cm.

Let’s calculate the area:

S = a * b = 30.5 * 20.3 = 619.15 cm².