Geometry

Mr. White

Obtuse

an angle whose measure is greater than 90 but less than 180

degrees

Right Angle

an angle whose measure is 90 degrees

CUTAcute Angle

an angle whose measure is greater than 0

but less than 90 degrees

Perpendicular Lines

2 segments, rays, or lines that form a 90 degree angle

Tessellation

a covering of a plane with congruent

copies of the same region

with no holes or overlaps

Line Segment

the set of points consisting of two

distinct points

and all inbetween them

A PLANE IN WHICH EVERY POINT IS IDENTIFIED

WITH EXACTLY 1 NUMBER AND VICE VERSA

COORDINATE PLANEY

X

a one-dimensional figure that consists of one endpoint A, one point B,

all of the points on AB , and all points for which B is between them and A

RAY

AB

Parallel Lines

two or more coplanar lines that have no points

in common or are identical

the set of all points in a plane equally distant from a given point and a given line not containing the point

Parabola