6.6 Special Quadrilaterals Day 6. Summarizing Properties of Quadrilaterals Quadrilateral KiteParallelogramTrapezoid RhombusRectangle Square Isosceles.

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Presentation transcript:

6.6 Special Quadrilaterals Day 6

Summarizing Properties of Quadrilaterals Quadrilateral KiteParallelogramTrapezoid RhombusRectangle Square Isosceles Trapezoid

Identifying Quadrilaterals  Quadrilateral ABCD has at least one pair of opposite sides congruent. What kinds of quadrilaterals meet this condition?

 Sketch KLMN. K(2,5), L(-2,3), M(2,1), N(6,3).  Show that KLMN is a rhombus.

Copy the chart. Put an X in the box if the shape always has the given property. PropertyParallelo gram RectangleRhombusSquareKiteTrapezoid Both pairs of opp. sides are ll Exactly 1 pair of opp. Sides are ll Diagonals are perp. Diagonals are cong. Diagonals bisect each other X XXX X X XX XX X X

 Determine whether the statement is true or false. If it is true, explain why. If it is false, sketch a counterexample.  If CDEF is a kite, then CDEF is a convex polygon.  If GHIJ is a kite, then GHIJ is not a trapezoid.  The number of acute angles in a trapezoid is always either 1 or 2.