Unit 4 Reflect, Translate

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Unit 4 Reflect, Translate Rotate

• Lesson 1 Basic Constructions

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Unit 4 Lesson 1 Definitions

• 1. Point a specific location in space often
  represented by a dot.
• Ex. point A. A

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Unit 4 Lesson 1 Definitions

• 2. Line a set of points whose length goes on
  forever in 2 opposite directions.
• Ex. Line AB and Line GH.

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Unit 4 Lesson 1 Definitions

• 3. Line segment the part of a line between two
  points on a line.
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• Ex. Line segment AB or AB.

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Unit 4 Lesson 1 Definitions

• 4. Endpoints the points at the end of a line
  segment or a ray.
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• Ex. Point A and Point B are endpoints
• for line segment AB.

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Unit 4 Lesson 1 Definitions

• 5. Ray a part of a line that begins at an
  endpoint and goes on forever in one direction.
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• Ex. Ray MN or MN.

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Unit 4 Lesson 1 Definitions

• 6. Angle a figure formed by 2 distinct rays
  with a common endpoint called the vertex.
• Ex. Angle BAC or CAB.
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Unit 4 Lesson 1 Definitions

• 7. Plane a flat surface that has no edges or
  boundaries that goes on forever in all
  directions.
• Ex. Plane ABCD.
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Unit 4 Lesson 1 Definitions

• 8. Intersection the point at which two or more
  lines intersect or cross.
• Ex. Line AE and Line CD intersect
• at point B.
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Unit 4 Lesson 1 Definitions

• 9. Perpendicular lines lines that meet to form
  right angles.
• Ex. Line AB and Line CD are
• perpendicular lines.
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Unit 4 Lesson 1 Definitions

• 10. Parallel lines lines that lie in the same
  plane that do not intersect.
• Ex. Line AB and Line CD are
• parallel lines.
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Unit 4 Lesson 1 Definitions

• 11. Bisector a line or ray that divides a
  segment or angle into 2 equal parts.
• Ex. Ray BR bisects Angle BCA
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Unit 4 Lesson 1 Definitions

• 12. Congruent figures that have the same size,
  shape, and measure.
• Ex. Angle RSW and Angle TSW
• are congruent.
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Unit 4 Lesson 1 Definitions

• 13. Construction a geometric drawing made by
  using a compass and a straight edge.
• Ex. Constructing Line XY to bisect
• Line Segment AB.
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