Triangles
Quadrilaterals
Angles
Angles and Lines
Polygons
100
A triangle with one angle equal to 90 degrees.
What is a right triangle?
100
A quadrilateral with two pairs of opposite parallel sides.
What is a parallelogram?
100
An angle whose measure is more than 90 degrees.
What is an obtuse angle?
100
Two or more lines who lie in the same plane and do not intersect.
What are parallel lines?
100
A 5 sided polygon.
What is a pentagon?
200
A triangle with three angles smaller than 90 degrees.
What is an acute triangle?
200
An equilateral parallelogram.
What is a rhombus?
200
An angle whose measure is less than 90 degrees.
What is an acute angle?
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?
300
A triangle with one angle greater than 90 degrees.
What is an obtuse triangle?
300
A quadrilateral with two distinct pairs of consecutive congruent sides.
What is a kite?
300
An angle whose measure is 180 degrees.
What is a straight angle?
300
A ray that divides an angle into 2 congruent angles.
What is an angle bisector?
300
A polygon in which NO diagonals lie outside of it.
What is a convex polygon?
400
A triangle with 2 congruent sides.
What is an isosceles triangle?
400
A quadrilateral with exactly one pair of parallel sides.
What is a trapezoid?
400
Two angles whose sum is 90 degrees.
What are complementary angles?
400
2 lines that do not lie on the same plane and never intersect.
What are skew lines?
400
A ten sided polygon.
What is a decagon?
500
Two angles of a triangle that are opposite two sides of equal length.
What are base angles?
500
An equiangular rhombus, or a regular quadrilateral.
What is a square?
500
Two angles whose sum is 180 degrees.
What are supplementary angles?
500
2 sets of congruent angles that are formed by 2 intersecting lines.
What are vertical angles?
500
2 sides of a polygon that share a common vertex.
What are consecutive sides?
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