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122 lines
4.6 KiB
HTML
122 lines
4.6 KiB
HTML
<!doctype html>
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<head>
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<meta charset="UTF-8">
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<title>Acute Angles</title>
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<meta name="description" content="Different angles have different names: ">
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<header>
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<div id="hdr"></div>
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</header>
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<article id="content" role="main">
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<!-- #BeginEditable "Body" -->
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<h1 class="center">Acute Angles</h1>
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<p class="center">Different <a href="angles.html">Angles</a> have different names:</p>
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<p class="center"><img src="geometry/images/angle-types.svg" alt="types of angle" style="width: 527px; aspect-ratio: 527 / 83; max-width: 100%;" ></p>
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<p class="center"><span class="large">An <b>Acute Angle</b> is less than 90°</span></p>
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<p class="center"><img src="geometry/images/acute-angle.svg" alt="angle 54 degrees" style="width:174px; height:132px; min-width:174px;" ><br>
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<span class="large">This is an acute angle</span></p>
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<p>All the angles below are acute angles:</p>
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<div class="center"><img src="geometry/images/acute-angles.svg" style="width: 527px; aspect-ratio: 527 / 311; max-width: 100%;" ></div>
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<p> </p>
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<p class="center"><br>
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<img src="geometry/images/acute-text.svg" alt="A-cute" style="width:204px; height:83px; min-width:204px;" ><br>
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Also: the letter "A" has an acute angle.</p>
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<h2>Which Angle?</h2>
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<p>Remember to look carefully at which angle you are being asked to
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name:</p>
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<p class="center larger">The
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acute angle is the small angle which is less than 90°.</p>
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<table style="border: 0; margin:auto;">
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<tbody>
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<tr style="text-align:center;">
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<td style="text-align:right;">
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<p>If you choose the larger angle you<br>
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will have a <a href="reflex.html">Reflex Angle</a> instead:</p></td>
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<td><img src="geometry/images/angle-acute-vs-reflex.svg" alt="angle acute vs reflex" style="width:203px; height:141px; min-width:203px;" ></td>
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</tr>
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<tr style="text-align:center;">
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<td> </td>
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<td>The smaller angle is an <b>Acute Angle</b>,<br>
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but the larger angle is a <b>Reflex</b><b> Angle</b></td>
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</tr>
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</tbody></table>
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<p> </p>
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<div class="questions">1750, 1751, 1774, 9151, 9152, 3284, 3285, 3279,806,807</div>
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<div class="related">
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<a href="angles.html">Types of Angles</a>
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<a href="rightangle.html">Right Angles</a>
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<a href="obtuse.html">Obtuse Angles</a>
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<a href="geometry/straight-angle.html">Straight Angle</a>
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<a href="reflex.html">Reflex Angles</a>
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<a href="angle180.html">Angles On a Straight Line</a>
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<a href="angle360.html">Angles Around a Point</a>
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<a href="geometry/degrees.html">Degrees (Angle)</a>
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<a href="geometry/index.html">Geometry Index</a>
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</div>
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