A polygon that is equilateral and equiangular
Regular polygon
A polygon with six sides
Hexagon
A parallelogram that has four right angles
Rectangle
A parallelogram that has four congruent sides.
Rhombus
A polygon with ten sides
Decagon
A quadrilateral whose opposite sides are parallel
Parallelogram
A polygon with five sides
Pentagon
A parallelogram that is both a rhombus and a rectangle
Square
A polygon with eight sides
Octagon
A polygon in which no line containing a side of the polygon contains a point in the interior of the polygon
Convex polygon
A polygon with nine sides
Nonagon
The segment that connects the midpoint of its legs
Midsegment of a trapezoid
A polygon with all sides congruent
Equilateral Polygon
A segment that joins two nonconsecutive vertices
Diagonal
A quadrilateral with exactly one pair of opposite sides that are parallel
Trapezoid
If a quadrilateral is a parallelogram, then its consecutive angles are _________________.
supplementary
If a quadrilateral is a parallelogram, then its diagonals __________.
Bisect each other