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Side of the polygon

One of the segments that form an angle.


Vertex of the polygon

The intersection of two sides of the polygon.


Diagonal

A transformation in which the lines connecting every point.


Regular polygon

A polygon that is both equilateral and equiangular.


Concave Polygon

A polygon in which a diagonal can be drawn such that part of the diagonal contains points in the exterior of the polygon.


Convex

Is a regular polygon is always a convex.


Parallelogram

A quadrilateral with two pairs of parallel sides.


Rectangle

Is a quadrilateral with four right angles.


Rhombus

Is a quadrilateral with four congruent sides.


Square

Is a quadrilateral with four right angles and four congruent sides.


Kite

Is a quadrilateral with exactly two pairs of congruent consecutive sides.


Trapezoid

Is a quadrilateral with exactly one pair of parallel sides.


Base of a Trapezoid

One of a pair of consecutive angles whose common side is a base of the trapezoid.


Leg of a Trapezoid

One of the two nonparallel sides of the trapezoid.


Base Angles

A trapezoid are two consecutive angles whose common side is a base.


Isosceles Trapezoid

A trapezoid in which the legs are congruent.


Midsegment of a Trapezoid

Is the segment whose endpoints are the midpoints of the legs.
