Basic Geometric Figures
An exact location in space. It has no length, width, or thickness.
What is a point?
What are parallel lines?
An angle measuring 90 degrees.
What is a right angle?
A closed figure made up of line segments.
What is a polygon?
A polygon in which all the sides are the same length and all the angles are the same measure.
What is a regular polygon?
A straight path connecting two points and extending endlessly in both directions.
What is a line?
Lines that cross each other.
What are intersecting lines?
An angle measuring less than 90 degrees.
What is an acute angle?
A polygon with three sides.
What is a triangle?
A polygon in which sides have different lengths, and/or the angles have different measures.
What is an irregular polygon?
A flat surface extending endlessly in all directions.
What is a plane?
Lines that intersect to form right angles.
What are perpendicular lines?
An angle measuring more than 90 degrees.
What is an obtuse angle?
Any polygon with four sides.
What is a quadrilateral?
The common endpoint of a pair a sides in a polygon. (where the sides meet)
What is a vertex?
A word that describes points on a line.
What is collinear?
A portion of a line with two endpoints.
What is a line segment?
Two angels whose measurements add up to 90 degrees.
What are complementary angles?
A polygon with five sides.
What is a pentagon?
A polygon with seven sides.
What is a heptagon?
An x-coordinate and y-coordinate which designate a point on a coordinate plane.
What is an ordered pair?
A part of a line which extends endlessly in one direction, having one endpoint.
What is a ray?
Two angles whose measurements add up to 180 degrees.
What are supplementary angles?
A polygon with six sides.
A polygon with eight sides.
What is an octogon?