Question

A square rotated about its center by 360º maps onto itself at(1,2,3,4) different angles of rotation. You can reflect a square onto itself across (2,4,8,16)different lines of reflection. NextReset

Answer 1

A square rotated about its center by 360º maps onto itself at 90°, 180°, 270° and 360° - 4 different angles of rotation.

You can reflect a square onto itself across two diagonals and two segments that connects the middlepoints of opposite sides - 4 different lines of reflection.