Geometry from Points to Triangles- Glossary & Pronunciation Guide

Dimensions Pronunciation

One Dimensional

Two Dimensional

Three Dimensional

Points and lines: Pronunciation

Point

Ray

Line

Line Segment

Colinear

Non-colinear

Parallel

Converging

Diverging

Eucledian Plane

Angles: Pronunciation

Acute < 90

Right = 90

Obtuse > 90

Straight = 180

Circles:

Center

Radius

Diameter

Perimeter

Circumference

Sagitta

Apothem

Polygons:

Triangles

Scalene = all sides different

Isosceles = 2 sides the same

Equilateral = 3 sides same

Acute

Right

Obtuse

Similar

Congruent

Interior Angle

Exterior Angle

Pythagorean Theorem

Hypotenuse

Adjacent

Opposite

Spheres

http://library.thinkquest.org/20991/geo/parallel.html

http://www.mathnstuff.com/math/spoken/here/2class/260/trans.htm

Source: http://en.wikipedia.org/wiki/Regular_polygon#Regular_convex_polygons

Pronunciation:

Equilateral triangle {3}	Square {4}	Pentagon {5}	Hexagon {6}	Heptagon {7}	Octagon {8}	Enneagon {9}	Decagon {10}
Hendecagon {11}	Dodecagon {12}	Tridecagon {13}	Tetradecagon {14}	Pentadecagon {15}	Hexadecagon {16}	Heptadecagon {17}	Octadecagon {18}	Enneadecagon {19}
Icosagon {20}	Triacontagon {30}	Tetracontagon {40}	Pentacontagon {50}	Hexacontagon {60}	Heptacontagon {70}	Octacontagon {80}	Enneacontagon {90}	Hectogon {100}