Two identical cuboids can be put together to make a cube with a surface area of 90 square centimeters. If these two cuboids are put together to make a cuboid with the largest surface area, what is the surface area of the big cuboid in square centimeters?
两个相同的长方体可以拼成一个表面积是90平方厘米的正方体，如果用这两个长方体拼成一个表面积最大的长方体，那么这个大长方体的表面积是多少平方厘米．
<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<gadget id="calculator">15 * 2 * 2</gadget>
<output>60</output>

<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">(15/2) * 4 * 2</gadget>
<output>60</output>

<gadget id="calculator">(15/2) * 2</gadget>
<output>15</output>

<gadget id="calculator">60 - 15</gadget>
<output>45</output>

<gadget id="calculator">60 + 45</gadget>
<output>105</output>

<result>105</result>