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Geometry Chapter 1
Question | Answer |
---|---|
Postulate 1 | Through any two points exists exactly one line |
Postulate 2 | If two lines intersect, then their intersection is exactly one point |
Postulate 3 | If two points lie in a plane then the line containing those points must also lie in that plane |
Postulate 4 | If two planes intersect, then their intersection is a line |
Postulate 5 | Through any non collinear points ther exists exactly one plane |
Angle addition postulate | m<ABD+m<DBC=m<ABC |
Segment addition postulate | PS+ST=PT |
Distance formula | d= sq rt of (x2-x1)sq + (y2-y1)sq |
Midpoint formula | (x1+x2/2 , y1+y2/2) |
complementary | sum is 90 |
Supplementary | sum is 180 |