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Shapes & Designs

CMP: Shapes & Designs

angle The opening between two straight lines that meet at a vertex.
degree A unit of measure
diagonal A line segment connecting two non-adjacent vertices of a polygon.
equilateral triangle A triangle with all three sides the same length.
isosceles triangle A triangle with two sides the same length.
parallel lines Lines that never meet no matter how long they are extended.
parallelogram A quadrilateral in which both pairs of opposite sides are equal and parallel.
polygon A closed, flat (two-dimensional) shape whose sides are formed by line segments.
properties of shapes Characteristics of shapes that are always valid.
quadrilateral A polygon with four sides, as shown below.
rectangle A parallelogram with all right angles.
regular polygon A polygon that has all of its sides equal and all of its angles equal.
rhombus A quadrilateral that has all sides the same length.
right angle An angle that measures 90 degrees.
square A rectangle with all sides equal.
tiling Also called a tessellation.
trapezoid A quadrilateral with one pair of opposite sides parallel.
vertex The corners of a polygon.
Created by: edogg69