The sum of the sides of a cuboid is 48cm. It is known that the length is 4cm and the height is 5cm. What is its surface area in c㎡?
一个长方体的棱长之和是48cm，已知长4cm，高5cm，它的表面积是多少c㎡．
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

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

<gadget id="calculator">48 - 20 - 16</gadget>
<output>12</output>

<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">15 + 12 + 20</gadget>
<output>47</output>

<gadget id="calculator">47 * 2</gadget>
<output>94</output>

<result>94</result>