>>So you have a rectangular triangle, with the altitude being one side, and the line from your eye being the hypotenuse. Hence,
>>
>>distance*sin(30)=1000
>>
>>Which can be solved with calculator.exe (pull up the scientific version)... or you may remember that sin(30)=0.5, ergo the cloud is 2000 ft from you.
>
>I was not much good at trig, so I don't recall any of that, but...
>
>STAR STAR STAR
>
>Thanks!
>
>Update: How do I get the scientific version of the calculater.exe?

Menu, view, scientific.