This uses Geometer's Sketchpad to demonstrate Lesson 14 Example 4 of Module 1 of the Common Core Geometry modules, on page 115. Here we reflect triangle ABC over a given line, DE. As instructed, we use the compass tool to cross the reflection line twice and the compass tool to locate the reflected point, repeat 2 more times for each point to find the image.
Tagged under: mathematics,common core,geometry,sketchpad
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