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Angles
Shapes
Equations
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Lines
100
An angle that has exactly ninety degrees.
What is a right angle?
100
A closed shape with four straight sides whose ends connect.
What is a quadrilateral?
100
This symbol ≠ means.
What is not equal to?
100
When two lines intersect, they have two sets of equal angles, also known as...
What are vertical angles?
100
Algebraic notation for x is parallel to y.
What is x || y?
200
An angle with more than ninety degrees.
What is an obtuse angle?
200
A shape with all interior angles equal.
What is an equiangular polygon?
200
This symbol ≅ means.
What is congruent?
200
Angles inside of a polygon are know as...
What are interior angles?
200
Two lines that are perpendicular meet at this angle.
What is a right angle?
300
An angle with less than ninety degrees.
What is an acute angle?
300
A shape with all equal sides and equal angles.
What is a regular polygon?
300
This symbol ~ means:
What is similar?
300
Two angles whose measures add to exactly 180 degrees.
What are supplementary angles?
300
A point on a line that divides it into two equal parts.
What is a midpoint?
400
Angles whose measures add to ninety degrees.
What are complementary angles?
400
A polygon with seven sides.
What is a heptagon?
400
This symbol ≤ means:
What is less than or equal?
400
A polygon with at least one angle greater than 180 degrees.
What is a concave polygon?
400
To cut or divide and angle or line into two equal parts.
What is to bisect?
500
Angles that share a common side in a polygon.
What are consecutive angles?
500
A quadrilateral with only one set of parallel lines.
What is a trapezoid?
500
This symbol ≈ means:
What is approximately equal?
500
A polygon with all internal angles less than 180 degrees.
What is a convex polygon?
500
Two lines that never cross.
What are parallel lines?