Question

the area of a rectangle is 42 square inches and one side is 12 inches long . find the perimeter of the rectangle

Answer 1

The area is one side times the other side
Make the other side x.
12x=42
x=42/12=3.5
The perimeter is 2x+2y where x and y are sides of the rectangle.
P= 2(3.5)+2(12)=7+24=31 inches
Hope this helps.