Question

from unit 1, lesson 12
5 name a quadrilateral in which the diagonal is also a line of symmetry.
explain how you know the diagonal is a line of symmetry.

Explanation:

A kite is a quadrilateral where one of the diagonals divides the kite into two congruent halves. When you fold a kite along this diagonal, the two parts match exactly, which means the diagonal is a line of symmetry.

Answer:

Kite. The diagonal of a kite divides it into two congruent triangles, so when folded along this diagonal, the two - halves of the kite coincide, indicating it is a line of symmetry.