MathDB
Radius of a Circle

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March 3, 2010

Problem Statement

Given square ABCD ABCD with side 8 8 feet. A circle is drawn through vertices A A and D D and tangent to side BC. BC. The radius of the circle, in feet, is: <spanclass=′latex−bold′>(A)</span> 4<spanclass=′latex−bold′>(B)</span> 42<spanclass=′latex−bold′>(C)</span> 5<spanclass=′latex−bold′>(D)</span> 52<spanclass=′latex−bold′>(E)</span> 6 <span class='latex-bold'>(A)</span>\ 4 \qquad <span class='latex-bold'>(B)</span>\ 4 \sqrt{2} \qquad <span class='latex-bold'>(C)</span>\ 5 \qquad <span class='latex-bold'>(D)</span>\ 5 \sqrt{2} \qquad <span class='latex-bold'>(E)</span>\ 6
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