The base area of a cuboid is a square of 25 square centimeters, and its side view is also exactly a square. What is the volume of this rectangle in cubic centimeters?
一个长方体的底面面积为25平方厘米的正方形，它的侧面展开图也正好是一个正方形．这个长方形的体积是多少立方厘米？
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">25 * 20</gadget>
<output>500</output>

<result>500</result>