Parallelograms – Part 2 Geometry Chapter 6 A BowerPoint Presentation Proving quadrilaterals are parallelograms

In a quadrilateral, if both pairs of opp sides are, then (A repeat of the definition of parallelograms) If AB CD and AC BD Then ABCD is a

In a quadrilateral, if both pairs of opp sides are, then If AB CD and AD BC Then ABCD is a

In a quadrilateral, if both pairs of opp s are, then If A C and B D Then ABCD is a

In a quadrilateral, if one pair of opp sides are both &, then If AB DC and AB DC Then ABCD is a

In a quadrilateral, if both diagonals bisect each other, then If AM MC and BM MD Then ABCD is a

In a quadrilateral, if one is supp to both of its consecutive s, then If m A + m B = 180 and m A +m D = 180 Then ABCD is a