The usable area of the board is 45cm by 35cm which gives 9*7 = 63 squares.
No a rectangular prism has two sides on the end that are squares.
It has 6 faces, though not all of them are squares. It as two squares in all, though.
Rectangles and/or squares
a cube
Cubes have a square on each side, but rectangular prisms have rectangles or squares.
no
A square prism (assuming the 2 squares are among the 6 rectangular, not additional to).
This is a little odd, but: All squares are rectangles, but rectangles are never squares.
2
No a rectangular prism has two sides on the end that are squares.
It has 6 faces, though not all of them are squares. It as two squares in all, though.
Rectangles and/or squares
a cube
No. It has four rectangular and two squares, or six rectangular faces.
Cubes have a square on each side, but rectangular prisms have rectangles or squares.
Triangular prisms have triangles and rectangles. A rectangular prism has squares and rectangles.
Rectangular Prism. It's lateral faces are 4 rectangles. It's bases are 2 squares.