(geometry) a plane rectangle with four equal sides and four right angles
a parallelogram with four right angles
3-sided polygon, each angle is less than 90 degrees
3-sided polygon, 1 angle greater than 90 degrees
3-sided polygon. One 90 degree angle.
3-sided polygon. 2 congruent sides.
3-sided polygon. 3 congruent sides. 3 60 degree angles.
3-sided polygon. No congruent sides
4-sided quadrilateral. 2 pairs of parallel lines
4-sided quadrilateral. 1 pair of parallel lines
4 equal-sided polygon
a closed plane figure formed by three or more line segments
polygon with congruent sides and congruent angles
infinite set of points equidistant from a centerpoint
half of a circle
a figure drawn inside another
a figure drawn within a circle
10 sided polygon