lass="identifier">Geometry</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">area</span><span class="special">(</span><span class="identifier">Geometry</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry</span><span class="special">)</span></pre>
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<h6>
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            <span><a name="geometry.reference.algorithms.area.area_1.