Geometry Terms
Angles
Polygons
Triangles
Quadrilaterals
100
Tick marks
What are the short lines that show two sides of a polygon are the same length?
100
An angle measuring 90 degrees.
What is a right angle?
100
A 4-sided polygon.
What is a quadrilateral?
100
The most specific name for this triangle, according to its side lengths.
What is equilateral?
100
A quadrilateral with one pair of parallel sides.
What is a trapezoid?
200
The definition of parallel
What is two lines that will never touch?
200
An angle measuring less than 90 degrees.
What is an acute angle?
200
A 5-sided polygon.
What is a pentagon?
200
These are the three types of triangles according to their angles.
What is acute, obtuse, and right?
200
The definition of a parallelogram
What is 2 pairs of parallel sides?
300
Definition of a polygon
What is a closed shape made up of straight line segments?
300
An angle measuring more than 90 degrees.
What is an obtuse angle?
300
A 6-sided polygon.
What is a hexagon?
300
These are the three types of triangles according to their sides.
What are equilateral, isosceles, and scalene?
300
Any parallelogram with all four sides the same length.
What is a rhombus?
400
Definition of congruent
What is equal? (or the same)
400
The point where two lines meet and form an angle.
What is a vertex?
400
An 8-sided polygon
What is an octagon?
400
Number of acute angles in a right triangle
What is 2?
400
Names of three different types of parallelograms.
What are squares, rectangles, and rhombuses?
500
Lines that intersect and form square corners.
What are perpencicular lines?
500
In a paralellogram, opposite angles are this.
What is congruent? (Or equal, or the same)
500
The term used to describe a polygon having all equal sides and equal angles.
What is a regular polygon?
500
Visual Clue: The two names used to classify this triangle.
What are acute and isosceles?
500
Six names for this polygon (must get all 6):
What is: polygon, quadrilateral, parallelogram, rhombus, rectangle, and square?