The rectangle is 3 cm wide and 48 cm2 in area. have you calculated the perimeter of the rectangle?

In order to calculate the perimeter of a rectangle using the formula P = 2 * (a + b), we need to know its length (a) and width (b). By condition, we only know the width (that is, b = 3 cm). Therefore, first we have to calculate the length of this rectangle using the formula for calculating the area (which we know from the condition and is equal to 48 cm2): S = a * b. Accordingly, the length will be equal to: a = S / b.

48/3 = 16 cm.

Now we can calculate the perimeter:

2 * (16 + 3) = 38 cm.

Answer: the perimeter of the rectangle is 38 cm.