The length of the rectangle is 3 cm. What should be its width so that the perimeter of the rectangle

The length of the rectangle is 3 cm. What should be its width so that the perimeter of the rectangle is more than 38 cm, and the area is no more than 60 cm3.

Let us calculate how many centimeters correspond to the limitation of the width of a geometric figure – a rectangle, knowing, according to the conditions of this problem, that its area is 60 cm2, with a length equal to 3 centimeters:

60: 3 = 20.

Let’s calculate how many centimeters corresponds to the width limitation of this geometric figure, knowing, according to the conditions of this problem, that its perimeter is 38 cm:

(38 – 3 * 2): 2 = 16.

That is, the width lies in the range 16 <x <20.

Answer: The width is within 16 cm <x <20 cm.