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Classifying Polygons

Triangles and Quadrilaterals

polygons with "equal" side lengths, or "equal" interior angles are congruent
a quadrilateral with two pairs of parallel sides parallelogram
a quadrilateral with exactly one pair of parallel sides trapezoid
a parallelogram with 4 congruent sides rhombus
a parallelogram with four right angles. rectangle
a rectangle with four congruent sides or a rhombus with four right angles square
a triangle with 3 acute angles (less than 90 degrees) acute triangle
One angle in the triangle measures exactly 90 degrees. right triangle
A triangle where one angle measures over 90 degrees. obtuse triangle
A triangle with 3 congruent sides equilateral triangle
A triangle with at least two congruent sides isosceles triangle
A triangle with no congruent sides. scalene triangle
point where lines meet form corners or _________ vertices
Closed 2-D shape that has only straight lines, angles, and vertices polygon
four sided polygon quadrilateral
three sided polygon triangle
Created by: TanyaBryant