A conical billet has a diameter of 6 cm and a height of 5 cm. The billet weighs 7.8 grams per cubic centimeter. How many grams does this billet weigh?
一个圆锥形钢坯，直径6厘米，高5厘米，每立方厘米钢坯重7.8克，这块钢坯重多少克？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * 9 * 5 * (1/3)</gadget>
<output>47.1</output>

<gadget id="calculator">7.8 * 47.1</gadget>
<output>367.38</output>

<result>367.38</result>