Top Part: Let’s assume that from the top part of the skirt to where the thighs meet is veritically 4cm. Also assume that from the end of the skirt to the point we are interested in viewing is horizontally 12cm. Looking from the side, the point of interest and the edge of the skirt form a triangle ABC.
Bottom part: Extending BC we reach our ideal observation point E where we our point of interest comes into view. blah blah explanation of where ABCDE is we come to the conclusion that DE must be 53.3cm in order to achieve the optimum viewing angle. Assuming an average height of 170cm and seating height of 70cm the observer must bluntly lean over and reduce his viewing height by 17cm to see the inside of her thighs. I don’t think she would mind so much. Go for it.
Source: Why Asian Kids are Good at Math
លំហាត់ដ៏គួរអោយចាប់អារម្មណ៍5 12 2009