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98 lines
3.4 KiB
HTML
98 lines
3.4 KiB
HTML
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<h1 class="center">Interactive Unit Circle</h1>
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<p class="center"><a href="../sine-cosine-tangent.html">Sine, Cosine and Tangent</a> ... in a Circle or on a Graph.</p>
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images/circle-unit.js
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<h2>Sine, Cosine and Tangent</h2>
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<p><b>Sine</b>, <b>Cosine</b> and <b>Tangent</b> (often shortened to <b>sin</b>, <b>cos</b> and <b>tan</b>) are each a <b>ratio of sides</b> of a right angled triangle:</p>
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<p class="center"><img src="images/sin-cos-tan.svg" alt="sin=opposite/hypotenuse cos=adjacent/hypotenuse tan=opposite/adjacent" style="max-width:100%" height="181" width="468"></p>
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<p class="center">For a given angle <b><i>θ</i></b> each ratio stays the same<br>
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no matter how big or small the triangle is</p>
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<a href="trigonometry-index.html">Trigonometry Index</a>
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<a href="../geometry/unit-circle.html">Unit Circle</a>
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