Find a cylindrical teacup. Measure its height from the inside to be 30 cm and the diameter of its bottom to be 8 cm. Calculate how many grams of water this teacup can hold? (1 cubic centimeter weighs 1 gram)
找一个圆柱形茶杯，从里面量出它的高是30厘米，底面直径是8厘米，算出这个茶杯大约可盛水多少克？(1立方厘米重1克)
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 30 * 1</gadget>
<output>1_507.2</output>

<result>1_507.2</result>