Angles & Lines
Polygons
Triangles
Quadrilaterals
Circles
100
Two or more lines that lie in the same plane and do not intersect
What are Parallel Lines?
100
A seven-sided polygon
What is a Heptagon?
100
A triangle with one right angle
What is a Right Triangle?
100
A quadrilateral with two pairs of opposite parallel sides
What is a Parallelogram?
100
A segment from the center of a circle to a point on the edge of the circle
What is a Radius?
200
Two lines that intersect to form a right angle
What are Perpendicular Lines?
200
A polygon whose sides are equal in measure
What is an Equilateral Polygon?
200
A triangle with three acute angles
What is an Acute Triangle?
200
An equilateral parallelogram
What is a Rhombus?
200
Two points on a circle and the continuous part of the circle between them
What is an Arc of a circle?
300
Two angles whose measures have the sum of 90 degrees
What are Complementary Angles?
300
A polygon in which no diagonal is outside the polygon
What is a Convex Polygon?
300
A Triangle with one angle between 90 and 180 degrees
What is an Obtuse Triangle?
300
A quadrilateral with two distinct pairs of consecutive congruent sides
What is a Kite?
300
A line segment whose endpoints lie on the circle
What is a Chord?
400
Two angles with the same measure
What are Congruent Angles?
400
A twelve-sided polygon
What is a Dodecagon?
400
A triangle with at least two congruent sides
What is an Isosceles Triangle?
400
A quadrilateral with exactly one pair of parallel sides
What is a Trapezoid?
400
Two or more coplanar circles with the same center
What are Concentric Circles?
500
A ray that divides an angle into two congruent angles
What is an Angle Bisector?
500
A closed geometric figure in a plane in which line segments connect endpoint to endpoint and each segment intersects exactly two others
What is a Polygon?
500
Two angles of a triangle that are opposite two sides of equal length
What are Base Angles?
500
An equiangular rhombus or an equilateral rectangle
What is a Square?
500
A line segment that intersects a circle only once
What is a Tangent?
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