Geometry_test one

30 terms · mr. kline's first unit_ honors geometry

Point

a location, with no shape or size , represented by a dot and named with a capital letter

Line

an array of infinite point that goes on forever in both directions, represented by a double headed arrow and named with a single, small letter or two points

Plane

flat surface that extends in all directions infinitely, no thickness, represented by a four sided figure and named with a scripted letter or 3 collinear points

Point

intersection of two lines , or a line and a plane

Line

intersection of two lines

Collinear

3 or more points all in the same line

coplanar

lying in the same plane

segment

section of a line containing two points and all the points in between

ray

part of a line containing one "start point" and goes on forever from there

opposite rays

two rays sharing a end point and form a line

length

distance between 2 points

if B is between A and C then AB and CB are equal, two line segments equal the lenth of one whole segment

congruent

when 2 objects have the same size and shape

congruent segments

segments that have equal lengths

midpoint of a segment

the point that divides the segment into two congruent segments

angle

a figure formed by 2 rays that have the same endpoint

vertex

the point where the 2 sides of an angle meet

side

the 2 rays that make up an angle

acute

angle between 0 and 90 degrees

right

a degree exactly 90 degrees

obtuse

between 90 and 180 degrees

straight

angle exactly 180 degrees

congruent angles

angles with equal measures

two angles on a plane with a shared vertex and side and do not overlape

bisector of an angle

a ray that divides an angle into 2 congruent angles

if you have two adjacent angles you can add them together to get one larger angle

minimum requirements

line: 2 points , plane: 3 points, space: 4 points

exactly one line

through any two points there is...

at least one plane

through any three points

exactly one plane

through any three noncollinear points, through a line and a point not in that plane , contain two intersecting lines