To find the distance a unicycle would travel, you would need to multiply the circumference of the wheel by the number of revolutions (full wheel turns). (image of unicycle)

Theres no drop down menu

Skew lines(segments) are lines(segments) in 3 dimensions that do not intersect the given segment and are not parallel to it.  ae, bf, eg, and fh are your skew segments.  i hope that : )