A cuboid has sides 80 cm long, 10 cm long, and 7 cm wide. How many centimeters is the height.
一个长方体的棱长总和是80厘米，长10厘米，宽是7厘米．高是多少厘米．
<gadget id="calculator">80 / 4</gadget>
<output>20</output>

<gadget id="calculator">10 + 7</gadget>
<output>17</output>

<gadget id="calculator">20 - 17</gadget>
<output>3</output>

<result>3</result>