Geometry Crossword

a plane with three straight sides and three angles
(of a line) intersecting a system of lines
a part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint
a straight line from the center to the circumference of a circle or sphere
a long, narrow mark or band
a quadrilateral with only one pair of parallel sides
each angular point of a polygon, polyhedron, or other figure
a parallelgram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides
a plane figure with four equal straight sides and four right angles
a plane figure with four straight and four right angles, especially one with unequal adjacent sides, in contrast to a square
the length of the diameter of a figure, especially a circle or sphere
the enclosing boundary of a curved geometric figure, especially a circle
a part of a figure cut off by a line or plane intersecting it
the longest side of a right triangle, opposite the right angle
a four sided figure
a plane figure with at least three straight sides and angles and typically five or more
at an angle of 90 to a given line, plane or surface
either of two angles whose sum is 180
more than 90 and less than 180
a constant or definite pattern