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<title>4.C: Dilations</title>
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<h2>Overview</h2>
<p>The purpose of this lesson is to learn how to perform dilations on figures.</p>
<p>This lesson will address the following CCRS Standard(s) for Geometry:</p>
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<li><em>8.G.4: Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them</em></li>
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<h2>Directions</h2>
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<li>Take notes while watching videos below</li>
<li>Go to <a class="external" href="http://wamap.org/" target="_blank">http://wamap.org</a> and log into our course to complete assignment 4.C with 80% or better.</li>
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<h3>Watch</h3>
<p><a class="" href="https://youtu.be/9eY5CxThBZo">Dilations [7:32]</a></p>
<h3>Do</h3>
<p>Complete assignment 4.C with 80% or better at <a href="http://wamap.org">http://wamap.org</a></p>
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<h2>Summary</h2>
<p>In this lesson we have learned:</p>
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<li>A dilation will create a similar figure whose sides are proportional to the original shape.</li>
<li>The point (a,b) when dilated with a scale factor of r centered at the origin will create the new point (ar,br)</li>
<li>Scale factors greater than 1 enlarge the image.</li>
<li>Scale factors less than 1 (greater than zero) shrink the image.</li>
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