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Parallelograms:

A.  Definitions

A parallelogram is a 4-sided figure in which opposites sides are parallel to each other.

B.  Basic Memorizations

^{Area =}

C.  Examples

Ex [1]  Find the area of a parallelogram with diagonals of 6" and 8".  _________in².

^{a.  The answer is .} 

Ex [2]  Find the area of a parallelogram with diagonals of 5ft and 9ft.  ________ft².

^{a.  The answer is .}