Angles
Angles II
Lines, Rays and Line Segments
Polygons
Other
100
An angle that measures less than 90 degrees.
What is an acute angle?
100
A part of a line with one endpoint that extends indefinately in one direction.
What is a ray?
100
Lines that do not intersect.
What are parallel lines?
100
A ten-sided, ten-angled polygon.
What is a decagon
100
Partitioning a polygon into two or more non-overlapping triangles by drawing diagonals that do not intersect.
What is triangulating?
200
Two angles with the sum of 90 degrees.
What are complimentary angels?
200
An angle that measures 90 degrees.
What is a right angle?
200
Having exactly the same size and shape.
What is congruent?
200
A six-sided polygon.
What is a hexagon?
200
A five-sided polygon.
What is a pentagon?
300
Amount of degrees in a circle.
What is 360 degrees?
300
An angle that measures 180 degrees.
What is a straight angle?
300
Lines that meet at right angles.
What is perpendicular?
300
A nine-sided polygon.
What is a nonagon?
300
A triangle that has all three sides equal in length and three equal angles.
What is an equilateral triangle?
400
The point at the end of a line segment or end of a ray.
What is the endpoint?
400
Two angles with a sum of 180 degrees.
What is supplementary angles?
400
Next to.
What is adjacent?
400
An eight-sided polygon.
What is an octagon?
400
Similar shapes have the same shape but not necessarily the same size.
What are similar shapes?
500
An angle that measures more than 90 degrees.
What is an obtuse angle?
500
A common point of two rays or line segments that form an angle.
What is a vertex?
500
A line segment that connects nonadjacent corners of a polygon.
What is diagonal?
500
A seven-sided polygon.
What is a septagon?
500
A polygon with four sides.
What is a quadrilateral?
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