Question

A piece of molding 175 CM long is to be cut to form a rectangle or picture frame. What dimensions will enclose the largest area

Answer 1

we know that
the rectangle with the largest area is the square
so
[perimeter of a square]=4*x
where
x is the length side of a square
4*x=175--------> x=43.75 cm

the answer is
the dimensions are 43.75 cm x 43.75 cm