Area of quilt, Q=

Area of purple square, P =

Area of white area
= Q-P
=

=

=
You do not have a picture inserted it is just a grey screen
I am not going to do this for you, but I will help. Basically your model could either be 47 high and 8 wide, or 8 high and 47 wide. Figure out the rest.
A four-sided polygon is a <span>quadrilateral.</span>
Please state the question, I see no question.