ANGLES AND 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 five-sided polygon
What is a pentagon?
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 obtuse angle
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 whose measures have the sum of 180 degrees
What are supplementary angles?
400
A ten-sided polygon
What is a decagon?
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
Two sides of a polygon that share a common vertex
What are consecutive sides?
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 that intersects a circle only once
What is a tangent?
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