Properties of polygons - ALEX - Alabama Learning Exchange by CedricFebis

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									                       Properties of Polygons
                         Base angles are congruent
Isosceles triangle
                         Altitude bisects the top angle and bisects the base


                         All sides are congruent
Equilateral triangle     All interior angles are 60 degrees
                         Has all the properties of an isosceles triangle


Trapezoid                Consecutive angles between parallel sides are supplementary


                         Opposite sides are congruent
                         Opposite angles are congruent
Parallelogram
                         Diagonals bisect each other
                         Has all the properties of a trapezoid


                         All angles are congruent
Rectangle                All angles are right angles
                         Has all the properties of a parallelogram


                         Diagonals are perpendicular to each other
                         Diagonals bisect each other
Rhombus
                         Diagonals bisect opposite angles
                         Has all the properties of a kite


Square                   Has all the properties of the other quadrilaterals

								
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