The photographer took a photo of Xiaohong's father at a ratio of 1:20. The height in the photo is 8.5 cm. How many meters is Xiaohong's father actually tall?
摄影师按1：20的比给小红的爸爸拍了一张照片，照片的身高是8.5厘米，小红爸爸实际身高多少米．
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">8.5 / (1/20)</gadget>
<output>170</output>

<gadget id="calculator">170 / 100</gadget>
<output>17/10 = around 1.7</output>

<result>17/10 = around 1.7</result>