A cylindrical piece of steel has a base area of 50 square centimeters and a height of 90 centimeters. What is the volume of this piece of steel in cubic centimeters?
一根圆柱形钢材，底面积是50平方厘米，高是90厘米，这根钢材的体积是多少立方厘米．
<gadget id="calculator">50 * 90</gadget>
<output>4_500</output>

<result>4_500</result>