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1.1 & 1.2

1.1 & 1.2. Basics. Undefined terms. Point: a dot, no dimension Line: a line the an arrow on each end, one dimension Plane: two dimensions. Vocab. Collinear points: points on the same line Coplanar points: points in the same plane Segment: all points in between two endpoints

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1.1 & 1.2

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  1. 1.1 & 1.2 Basics

  2. Undefined terms • Point: a dot, no dimension • Line: a line the an arrow on each end, one dimension • Plane: two dimensions

  3. Vocab • Collinear points: points on the same line • Coplanar points: points in the same plane • Segment: all points in between two endpoints • Ray: all points starting at one endpoint and continuing towards another point

  4. Intersections • The intersection of two lines is a point • The intersection of two planes is a line.

  5. Practice Two other names for the line AB Name a pair of opposite rays. Name a point that is not coplanar with the points A, B, and C

  6. Ruler Postulate Segment Addition Postulate

  7. Practice Use the number line to find the distance of: XY, YZ, and XZ

  8. Homework • Pg. 6 (17-21 & 27-37) odd • Pg. 12 (3-11 & 21-25) odd

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