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<p><big> Surface area </big></p>
<p>The surface area of a parallelepiped is the sum of the areas of the bounding parallelograms:</p>

<p>(For labeling: see previous section.)</p>

<p><big>Special cases by symmetry</big></p>
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*The parallelepiped with O<sub>h</sub> symmetry is known as a <b><a href="page.php?w=cube">cube</a></b>, which has six congruent square faces.<br/>
*The parallelepiped with D<sub>4h</sub> symmetry is known as a <b><a href="page.php?w=square_cuboid">square cuboid</a></b>, which has two square faces and four congruent rectangular faces.<br/>
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