Chapter 11.2B, Problem 18A

To determine

(a)

To find:

Most general form of quadrilateral having two lines of symmetry “Lines of symmetry each through a pair of opposite vertices”.

To determine

(b)

To find:

Quadrilateral having two lines of symmetry “Lines of symmetry each through a pair of midpoint of opposite sides”.

To determine

(c)

To find:

Quadrilateral having a line of symmetry “Lines of symmetry each through a pair of midpoints of opposite sides”.