Question

Which diagram has all the correct lines of reflectional symmetry for the rectangle?

A rectangle is folded diagonally on both corners.
A rectangle is folded by a vertical and horizontal line going through its center.
A rectangle is folded 4 ways. It is folded horizontally, vertically, and diagonally on both corners.
A rectangle is folded 4 ways. It is folded diagonally at each midpoint of every side.

Answer 1

Answer: "A rectangle is folded by a vertical and horizontal line going through its center."

Reason: A (non‑square) rectangle has exactly two reflectional symmetries — the lines through the midpoints of opposite sides (vertical and horizontal through the center). Diagonals are symmetry lines only for a square, not for a general rectangle.