The perimeter of a rectangle is between 40 cm and 50 cm. If the ratio of its length to width is 5:7, what is the perimeter of the rectangle? What is the area

The perimeter of a rectangle is between 40 cm and 50 cm. If the ratio of its length to width is 5:7, what is the perimeter of the rectangle? What is the area

The side length should be an integer
So the perimeter is a multiple of 2 × (5 + 7) = 24
So the circumference is 48 cm
Length 48 △ 2 × 7 ÷ (7 + 5) = 14
Width 48 △ 2 × 5 △ 7 + 5 = 10
14×10=140
A: the perimeter is 48 cm and the area is 140 square cm