The height of the door is 2 meters, and the height of the father is about (9/10) of the door. How many centimeters is the height of the father?
门高2米，爸爸的身高大约是门的(9/10)，爸爸身高大约是多少厘米？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2 * (9/10) * 100</gadget>
<output>180</output>

<result>180</result>