Geometry Postulates
Terms
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- Unique Line Postulate
- If there are two points, then they will determine a line.
- Postulate #2
- If there is a line, then it contains at least two points.
- Unique Plane Postulate
- If there are three non-collinear points, then they determine a plane.
- Postulate #4
- If there is a plane, then it contains at least three non-collinear points.
- Postulate #5
- If the points are in the plane, the line is in the plane
- Postulate #6
- If two planes intersect, their intersection is a line.
- Ruler Postulate
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Points A, B and C lie on a line.
AC - AB = BC - Segment Addition Postulate
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Points A, B and C lie on a line.
AB + BC = AC - Protractor Postulate
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Two angles (angle 1, angle two) share a ray and form one larger angle (angle 3).
Angle 3 - Angle 2 = Angle 1 - Angle Addition Postulate
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Two angles (angle 1, angle two) share a ray and form one larger angle (angle 3).
Angle 1 + Angle 2 = Angle 3 - Linear Pair Postulate
- Two angles share a ray and form a larger angle of 180 degrees.