関連ワード:
is a diagonal a line of symmetry is a diagonal a line of symmetry for a rectangle does a diagonal line have a line of symmetry does a square have a diagonal line of symmetry does a parallelogram have a diagonal line of symmetry does a rhombus have a diagonal line of symmetry does a trapezoid have a diagonal line of symmetry does a kite have a diagonal line of symmetry one diagonal is a line of symmetry neither diagonal is a line of symmetry
