Geometry Vocabulary

Vocabulary practice for basic geometry terms.  Simple definitions.

52 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Acute Angle
Measure is greater than 0 and less than 90.
Ray
Part of a line that has one endpoint and extends infinitely in one direction.
Parallelogram
A quadrilateral that has 2 pair of parallel sides.
Congruent Angles
Angles with the same measure.
Plane
A flat surface with no edges or boundaries.
Acute Triangle
A triangle with all 3 angles less than 90 degrees.
Adjacent Angles
Two angles that share a common ray.
Scalene Triangle
A triangle with all 3 sides different lengths.
Isosceles Triangle
A triangle with at least 2 sides the same length.
Hexagon
A six-sided polygon.
Vertical Angles
Intersecting lines form opposite, congruent angles.
Transversal
A line that intersects 2 or more lines.
Complementary Angles
TWO angles whose measures add up to 90 degrees.
Perpendicular
Two lines which intersect to form a right angle.
Translation
A transformation that slides a figure horizontally, vertically, or both.