WHAT ARE THE DIMENSIONS FOR AREA 18 SQUARE FEET AND 18 PERIMTER

Question

I DONT UNDER STAND THE MATH THAT MY TEACHER GIVES MY CLASS NEITHER DO THEY

Answer 1

Assuming that the area has a rectangle shape, Area=a*b=18 (a, b- sides)

Perimeter=2(a+b)=18.

So we have 

a*b=18

a+b=9

a=3, b=6 (or a=6, b=3)

The dimensions are  (3, 6); width 3 and length 6.