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PA Geometry Terms
Term | Definition |
---|---|
Trapezoid | A quadrilateral with one pair of parallel sides |
Parallelogram | A quadrilateral with two pairs of parallel sides |
Rhombus | A quadrilateral with two pairs of parallel sides and four sides of equal length |
Rectangle | A quadrilateral with two pairs of parallel sides and four right angles |
Square | A quadrilateral with two pairs of parallel sides, four right angles, and four sides of equal length |
Right Triangle | A triangle with one right angle and two acute angles |
Acute Triangle | A triangle with three acute angles |
Obtuse Triangle | A triangle with one obtuse angle and two acute angles |
Scalene Triangle | A triangle with three side of different lengths |
Isosceles Triangle | A triangle with at least two sides of equal length |
Equilateral Triangle | A triangle with three sides of equal length |
Parallel Lines | Two lines that never meet |
Perpendicular Lines | Two lines that intersect at 90 degrees |
Complementary Angles | Two angles whose measures have a sum of 90 degrees |
Supplementary Angles | Two angles whose measures have a sum of 180 degrees |
Vertical Angles | Two pairs of angles that do not share a side and have the same measure--formed by intersecting lines |