A cylindrical can has a base radius of 10 cm and a height of 15 cm. What is its volume?
一个圆柱形罐头盒的底面半径是10cm，高是15cm，它的体积是多少？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 15</gadget>
<output>4_710</output>

<result>4_710</result>