A cylindrical steel is cut off 5 centimeters, and its cross-sectional diameter is measured to be 6 centimeters. If the steel weighs 7.8 grams per cubic centimeter, how many grams does the cut piece of steel weigh?
一根圆柱形钢材截下5厘米，量得它的横截面直径是6厘米，如果每立方厘米钢重7.8克，截下的这段钢材重多少克？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 5 * 7.8</gadget>
<output>1_102.14</output>

<result>1_102.14</result>