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183 lines
6.4 KiB
HTML
183 lines
6.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en"><!-- #BeginTemplate "/Templates/Main.dwt" --><!-- DW6 -->
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<!-- Mirrored from www.mathsisfun.com/geometry/hexahedron.html by HTTrack Website Copier/3.x [XR&CO'2014], Sat, 29 Oct 2022 00:44:16 GMT -->
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<!-- #BeginEditable "doctitle" -->
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<title>Spinning Cube</title>
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<style type="text/css">
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.boxa {
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text-align: left;
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vertical-align:middle;
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display: inline-block;
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vertical-align:middle;
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margin: 0;
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padding: 2px;
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width:240px;
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background-color: hsla(240,100%,60%,0.1);
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}
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.boxb {
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display: inline-block;
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vertical-align: top;
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margin: 0 10px 10px 10px;
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width: 450px;
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}
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</style>
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<!-- #EndEditable -->
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<meta name="keywords" content="math, maths, mathematics, school, homework, education">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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<meta name="HandheldFriendly" content="true">
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<meta name="referrer" content="always">
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<link rel="preload" href="../images/style/font-champ-bold.ttf" as="font" type="font/ttf" crossorigin="">
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<link rel="preload" href="../style4.css" as="style">
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<link rel="preload" href="../main4.js" as="script">
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<link rel="stylesheet" href="../style4.css">
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<script src="../main4.js" defer="defer"></script>
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<script>
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window.dataLayer = window.dataLayer || [];
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function gtag(){dataLayer.push(arguments);}
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gtag('js', new Date());
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gtag('config', 'UA-29771508-1');
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</script>
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</head>
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<body id="bodybg">
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<div id="stt"></div>
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<div id="adTop"></div>
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<header>
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<div id="hdr"></div>
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<div id="tran"></div>
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<div id="adHide"></div>
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<div id="cookOK"></div>
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</header>
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<div class="mid">
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<nav>
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<div id="menuWide" class="menu"></div>
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<div id="logo"><a href="../index.html"><img src="../images/style/logo.svg" alt="Math is Fun"></a></div>
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<div id="search" role="search"></div>
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<div id="linkto"></div>
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<div id="menuSlim" class="menu"></div>
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<div id="menuTiny" class="menu"></div>
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</nav>
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<div id="extra"></div>
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<article id="content" role="main">
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<!-- #BeginEditable "Body" -->
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<h1 class="center">Cube</h1>
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<p class="center"><i>Go to <a href="#Area">Surface Area</a> or <a href="#Volume">Volume</a></i></p>
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<div class="boxa">
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<div class="head">Cube Facts</div>
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<p><b>Notice these interesting things:</b></p>
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<ul>
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<li>It has 6 Faces</li>
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<li>Each face has 4 edges (and is a <a href="square.html">square</a> )</li>
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<li>It has 12 Edges</li>
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<li>It has 8 Vertices (corner points)</li>
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<li>and at each vertex 3 edges meet</li>
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<li>It is one of the <a href="../platonic_solids.html">Platonic Solids</a></li>
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</ul>
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</div>
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<div class="boxb">
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<div class="script" style="height: 450px;">
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images/polyhedra.js?mode=cube
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</div>
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</div>
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<div style="clear:both"></div>
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<p> </p>
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<div class="words">
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<p style="float:right; margin: 0 0 5px 10px;"><img src="images/cube.svg" alt="hexahedron" height="139" width="138"></p>
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<p>A cube is also called a <b>hexahedron</b> because it is a <a href="polyhedron.html">polyhedron</a> with 6 (<i>hexa-</i> means 6) faces.</p>
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</div>
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<p> </p>
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<p style="float:left; margin: 0 10px 5px 0;"><img src="images/pair-dice2.svg" alt="pair dice" height="108" width="197"></p>
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<p>Cubes make nice <b>6-sided dice</b>, because they are regular in shape, and each face is the same size.</p>
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<p>In fact, you can make <a href="fair-dice.html">fair dice</a> using all of the Platonic Solids.</p>
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<p> </p>
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<table style="border: 0;">
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<tbody>
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<tr>
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<td><a href="cube-model.html">Make your own Cube</a>:<br>
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cut out the shape and glue it together.</td>
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<td><a href="cube-model.html"><img src="images/cube-model-thumb.svg" alt="Cube Model Template" height="173" width="130"></a> </td>
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</tr>
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</tbody></table>
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<p> </p>
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<p class="center"><img src="images/salt-crystals.jpg" alt="salt crystals" height="187" width="200"><br>
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Salt crystals grow in cube-like shapes.<br>
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(Because the atoms link up as corners of a cube.)</p>
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<a id="Area"></a>
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<h2>Surface Area</h2>
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<p class="center"><b>Surface Area</b> = 6 × (Edge Length)<sup>2</sup></p>
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<div class="example">
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<h3>Example: <span class="center">Edge Length</span> = 4</h3>
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<div class="tbl">
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<div class="row"><span class="left"><span class="center">Surface Area</span></span><span class="right"><span class="center">= 6 × (Edge Length)<sup>2</sup></span></span></div>
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<div class="row"><span class="left"> </span><span class="right"><span class="center">= 6 × 4<sup>2</sup></span></span></div>
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<div class="row"><span class="left"> </span><span class="right"><span class="center">= 6 × 16</span></span></div>
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<div class="row"><span class="left"> </span><span class="right"><span class="center">= 96</span></span></div>
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</div>
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</div>
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<a id="Volume"></a>
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<h2>Volume</h2>
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<p class="center"><b>Volume</b> = (Edge Length)<sup>3</sup></p>
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<div class="example">
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<h3>Example: <span class="center">Edge Length</span> = 4</h3>
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<div class="tbl">
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<div class="row"><span class="left"><span class="center">Volume</span></span><span class="right">= (Edge Length)<sup>3</sup></span></div>
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<div class="row"><span class="left"> </span><span class="right">= 4<sup>3</sup></span></div>
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<div class="row"><span class="left"> </span><span class="right">= 4 × 4 × 4</span></div>
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<div class="row"><span class="left"> </span><span class="right">= 64</span></div>
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</div>
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</div>
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<p> </p>
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<div class="questions">855, 856, 857, 858, 1822, 1823, 1835, 1836, 1837, 1838</div>
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<div class="related">
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<a href="../cuboid.html">Cuboids</a>
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<a href="polyhedron-models.html">Animated Polyhedron Models</a>
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<a href="hypercubes.html">Hypercubes</a>
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<a href="../platonic_solids.html">Platonic Solids</a>
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</div>
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<!-- #EndEditable -->
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</article>
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<div id="adend" class="centerfull noprint"></div>
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<footer id="footer" class="centerfull noprint"></footer>
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<div id="copyrt">Copyright © 2022 Rod Pierce</div>
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</div>
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</body><!-- #EndTemplate -->
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