How big is 20 sq feet?

Answer 1

If it was a 5ft by 4ft rectangle then it would be 20ft2.

in fact you have a lot of options to make a 20ft2 surface

for example:

10ft * 2ft = 20ft2 or 2*51/2ft * 2*51/2ft = 20ft2&etc

you can solve your question by this equation

x*y=20

then you can find one variable by choising other one

y = 20/x

If you give x you get y