Basic Geometry 3.1 - 3.3

18 terms

Convex Polygon

A polygon where are the vertices point out.

Concave Polygon

A polygon in which one or more vertices point in.

Polygon

A closed figure created by 3 or more straight sides that only intersect at their endpoints.

Equilateral Triangle

A triangle with all sides congruent.

Isosceles Triangle

A triangle with two congruent sides.

Scalene Triangle

A triangle with no congruent sides.

Equiangular Triangle

A triangle with all angles congruent.

Acute Triangle

A triangle with all angles acute.

Right Triangle

A triangle with one right angle.

Obtuse Triangle

A triangle with one obtuse angle.

Trapezoid

A quadrilateral with exactly one pair of parallel sides.

Parallelogram

A quadrilateral with two pairs of opposite parallel sides.

Rhombus

A parallelogram with four congruent sides.

Rectangle

A parallelogram with four right angles.

Square

A parallelogram that is both a rectangle and a rhombus.

Pentagon

A five sided polygon.

Octagon

An eight sided polygon.

N-gon

A polygon with N sides