After a conical block with a base diameter of 36 cm and a height of 8 cm is divided into two blocks of the same shape and size, how many square centimeters will the surface area increase from the original?
将一根底面直径是36cm，高是8cm的圆锥形木块分成形状、大小完全相同的两个木块后，表面积比原来增加了多少平方厘米？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">36 * 4 * 2</gadget>
<output>288</output>

<result>288</result>