EDM Unit 3 Part 2

STUDY
PLAY
equilateral triangle
A three sided polygon with all three sides equal in length.
isosceles triangle
A three sided polygon with at least two sides the same length.
scalene triangle
A three sided polygon that has three different side lengths.
congruent
Having the exact same size angles, side lengths, and shape.
polygon
A closed, 2-dimensional figure made up of straight line segments joined at points.
regular polygon
A polygon whose sides are all the same length and whose angles are all equal.
convex polygon
A polygon in which all verticies are "pushed outward".
concave polygon
A polygon with which at least one vertex is "pushed in".
quadrilateral
A polygon that has four sides.
parallelogram
A quadrilateral with two pairs of parallel sides and opposite sides congruent.