A regular quadrilateral is a. square. It is a foursided figure with all sides being the same length and all angles equal (right angles)
http://wiki.answers.com/Q/What_is_a_regular_quadri...

A regular quadrilateral is a square. It is a four sided figure with
http://www.chacha.com/question/whatisanothernam...

The triangle appears to be an isosceles, which means two of the legs(sides) are the same length. If the shape is a quadrilateral, then the opposite sides must be parallel. And if
http://answers.yahoo.com/question/index?qid=201307...

STUDY ISLAND: kite.
http://wiki.answers.com/Q/What_is_A_quadrilateral_...
