Yes, but not a convex one.
Depending on the sizes of the two squares, their orientation, and the extent of their overlap, anything from a square to a 16-sided polygon.
make three squares and overlap them so that two of them meet in the center of the third square, making four smaller squares in the center
It will make two squares.
A rectangle
No, a heptagon cannot be parallel but two heptagons can.A heptagon can be concave.
Depending on the sizes of the two squares, their orientation, and the extent of their overlap, anything from a square to a 16-sided polygon.
make three squares and overlap them so that two of them meet in the center of the third square, making four smaller squares in the center
54
if the squares can't overlap then: 36 one by one squares 9 two by two squares 4 three by three squares 1 four by four squares 1 five by five squares 1 six by six square a total of 52 then if they can overlap then: 36 one by one 25 two by two 16 three by three 9 four by four 4 five by five 1 six by six a total of 91 then
It will make two squares.
A rectangle or, if the squares are allowed to overlap it is possible to have a 16-gon ("star" shaped), 14-gon, 9-gon, 8-gon.
heptagon
move
A rectangle
No, a heptagon cannot be parallel but two heptagons can.A heptagon can be concave.
a pextongon
3 squares: 36 + 4 + 1 2 squares: 25 + 16