Geometry A
A part of a line that has one endpoint and goes on forever in one direction.
What is a ray?
An exact location in space represented by a dot.
What is a point?
A set of connected points continuing without end in both directions.
What is a line?
A part of a line with two endpoints.
What is a line segment?
Two rays that share an endpoint.
What is an angle?
An angle with a measure less that 90 degrees.
What is an acute angle?
The point at which two line segments, lines, or rays meet to form an angle.
What is vertex?
An angle with a measure greater than 90 degrees and less than 180 degrees.
What is obtuse?
An angle with a measure of 180 degrees.
What is a straight angle?
An angle that measures exactly 90 degrees.
What is right?
Lines that are always the same distance apart.
What are parallel?
A polygon with all sides the same length and all angles the same measure.
What is a regular polygon?
A quadrilateral with two pairs of parallel and congruent sides.
What is a parallelogram?
A polygon whose sides are not all the same length.
What is an irregular polygon?
Lines forming right angles.
What is perpendicular?
A polygon with six sides.
What is a hexagon?
A polygon with 8 sides.
What is an octagon?
A polygon with nine sides.
What is a nonagon?
A polygon with five sides.
What is a pentagon?
A polygon with seven sides.
What is a heptagon?
A quadrilateral with one pair of parallel sides and one pair of sides that are not parallel.
What is a trapezoid?
A four-sided polygon.
What is a quadrilateral?
A polygon with ten sides.
What is a decagon?
A parallelogram with all four sides equal in length?
What is a rhombus?
An angle that measures more than 180 degrees.
What is reflex?