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16 Cards in this Set

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  • Back
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Postulate 1

Only one straight line can be drawn through two points; two points determine a straight line

Straight line

Postulate 2

A straight line is the shortest line connecting two points in a plane

Shortest line

Postulate 3

A line segment can be bisected at only one point

Bisect

Postulate 4

Two lines in the same plane either intersect or are parallel. If two lines intersect, four angles are formed at the point of intersection.

Intersect or parallel

Postulate 5

An angle has only one bisector

Bisector

Postulate 6

All straight angles are congruent

Straight angles

Postulate 7

All right angles are congruent

Right angles

Postulate 8

In a plane, only one line can be drawn through a point perpendicular to a line

Perpendicular

Postulate 9

If one line meets another line the adjacent angles formed are always supplementary

Adjacent angles

Postulate 10

Angles that are complements of the same angle, or congruent angles, are congruent

Postulate 11

Angles that are supplements of the same angle, or congruent angles, are congruent

Postulate 12

Vertical angles are congruent

Vertical angles

Postulate 13

The sum of the measures of the angles around a common vertex on one side of a line is 180

Sum

Postulate 14

If three sides of one triangle are congruent to three sides on another triangle the triangles are congruent

SSS postulate

Postulate 15

If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle the triangles are congruent

SAS postulate

Postulate 16

If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle the triangles are congruent

ASA postulate