Question

In which rectangles are the perimeter, in units, the same as the area, in square units?

Answer 1

2(x+y) = xy
so, the dimensions are x and 2x/(x-2)
2(4+4) = 4*4
2(3+6) = 3*6
I think the rest do not have integer sides.
2(5 + 10/3) = 5 * 10/3
and so on

Answer 2

A large rectangle has side lengths of 8 centimeters and 7 centimeters.
A small square with side lengths of 4 centimeters is cut out of the large rectangle.
What is the area of the remaining part of the large rectangle?
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