A circle is formed by a wire with a length of 62.8 decimeters, what is the radius of this circle in decimeters
用一根长为62.8分米的铁丝围成一个圆，这个圆的半径是多少分米
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<result>10</result>