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Key T3 Constructions

Instructions

  1. Use the Construction Protocol bar (located at the bottom right hand side of each Geogebra applet window) to fast-forward and rewind through the steps of a potential solution for the test.
  2. Check to see if the construction passes the drag test - drag vertices from the given information and watch how the construction changes.
 Your sketches will be graded on:
  • a. accuracy (did they do what was asked)
  • b. robustness (do they pass the drag test?)
  • c. efficiency (don’t make extra circles!)
  • d. style (Please measure relevant lengths, angles, etc). Color can make your sketch look good.
Below are sketches that hint at the final answer. Show all your circles and segments.
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1. Given 2 side lengths that make up a given angle, construct a congruent triangle using side-angle-side.

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2. Starting with a point floating above a line, construct a square.

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3. Construct a 30-degree angle. Confirm with the measure tool.

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4. Start with a short and a long segment. Construct a segment whose lenght is the a AVERAGE of the two given segment lengths. Confirm with the measure tool.