math 1: quadrilaterals and Other polygons ch 10 Flashcards
a regular polygon is a polygon in which all the sides have the same … and all the angles have the same…
length; measure
in any quadrilateral, the sum of the measures of the four angles is
360 degrees
the sum of the measures of the n angles in a polygon with n sides is
(n-2) x 180degrees
an exterior angle of a polygon is formed by
extending a side
in any polygon, the sum of the exterior angles, taking one at each vertex, is
360 degrees
(parallelogram) opposite sides are p
parallel
(parallelogram) opposite sides are
congruent
(parallelogram) opposite angles are
congruent
(parallelogram) the sum of the measures of any pair of consecutive angles is
180 degrees
(parallelogram) a diagonal divides the parallelogram into
two congruent triangles
(parallelogram) the two diagonals
bisect each other
(rectangle) rectangles have all the properties of
parallelograms
(rectangle) the measure of each angle is
90 degrees
(rectangle) the diagonals of a rectangle have
the same length
(rhombus) have all the properties of
parallelograms