cylinder of wood has a base radius of 8 decimeters and a height of 10 decimeters. If each cubic decimeter of wood weighs 2.6 kilograms, how many kilograms does this wood weigh?
一块圆柱体木料，底面半径8分米，高10分米，如果每立方分米木料重2.6千克，这根木料重多少千克？
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64 * 10</gadget>
<output>2_009.6</output>

<gadget id="calculator">2.6 * 2_009.6</gadget>
<output>5_224.96</output>

<result>5_224.96</result>