The Right Tool - games (Introduction to Constructions)

David Wees, mark vasicek, 21/7/2020

This sequence of geometric constructions is designed as puzzles to figure out. Each game gets progressively harder; you use what you learn in future constructions. Attribution: This was inspired by David Wees' GeoGebra book "Introduction to Constructions" and Illustrative Mathematics. geometry. unit 1. section 1. activity 1. "The Right Tool." https://im.kendallhunt.com/HS/teachers/2/1/1/index.html Licensed under the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/


  • 1. #1 Draw a Circle
  • 2. #2 Given a Line Segment, Draw Another
  • 3. #3 Given a Line Segment, Draw Another
  • 4. #4 Double the length of a line segment
  • 5. #5 Triple a Line Segment
  • 6. #6 Draw Two Circles
  • 7. #7 Draw an Equilateral Triangle
  • 8. #8 Draw Three Circles
  • 9. #9 Two Circles That Touch Once
  • 10. #10 Draw Three Overlapping Circles
  • 11. #11 Draw a regular hexagon
  • 12. #12 Optimal Regular Hexagon
  • 13. #13 Construct Perpendicular Lines
  • 14. #14 Find the Midpoint
  • 15. #15 Construct 2 Circles Inside a 3rd
  • 16. #16 Construct a square
  • 17. #17 Construct a Regular Octagon

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#1 Draw a Circle

Given a line segment, draw a circle with its radius as the line segment.[br]Check your work by doing the drag test: use the MOVE tool to try to drag each of the points.
– mark vasicek, David Wees

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