cylindrical steel block with a base radius of 2 cm and a height of 10 cm is forged into a cone with a base area of 157 cm2. What is the height of the cone in cm?
将一根底面半径2厘米，高10厘米的圆柱形钢块，锻造成一个底面积为157平方厘米的圆锥，这个圆锥的高是多少厘米？
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 10</gadget>
<output>125.6</output>

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

<gadget id="calculator">125.6 / (1/3) / 157</gadget>
<output>2.4</output>

<result>2.4</result>