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Types of Triangles and Quadrilaterals

Information about types of triangles and quadrilaterals
a data set by arlene
created November 17, 2016
COPY & EDIT
FAMILY TREE
type of polygonnamenumber of sidesfeature of sidesfeature of angles
triangleacute3all angles are acute
triangleobtuse3one angle is obtuse
triangleright3one angle is right
trianglescalene3no sides are congruent
triangleisosceles3at least two sides are congruent
triangleequilateral3all three sides are congruent
quadrilateralparallelogram4opposite sides are congruent and parallelopposite angles are congruent
quadrilateralrectangle4opposite sides are congruent and parallelall right angles
quadrilateralrhombus4opposite sides are congruent and parallel and all four sides are congruentopposite angles are congruent
quadrilateralsquare4opposite sides are congruent and parallel and all four sides are congruentall right angles
quadrilateraltrapezoid4one pair of opposite sides is parallel
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