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GeoGebraClasse GeoGebra
GeoGebra

T3 Constructions

Auteur :Ambi Bobmanuel

Instructions

1. This test is to be taken with your assigned group. Communicating with students outside of your assigned group (penalty: -2 points per infraction) 2. Each student should complete all sketches below, on their own computer. 3. 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 hecka extra circles!)
  • d. style (Please measure relevant lengths, angles, etc). Color can make your sketch look good.
4. Each sketch is worth 10 pts. If you run out of time, you can work into break for (-1) pt. Below are sketches that hint at the final answer. (The teachers hid the circles so you would not see the methods.) Students should not hide any objects. Show all your circles and segments. With your assigned groups & your notes (including Day 4 activities in Schoology), construct the following using a compass (compass tool or circle tool) and straight edge (ray, line, segments) to plot points. The items in RED are what you are given; you are restricted to the use of compasses and straight edges until you arrive at the final answer. Then you will use the measure tool to check that your construction is correct. The item in blue is what your final product should look like, but I’ve erased the arcs you need to get there.
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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.

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