Two vertical poles, 20m and 80m high stand on a horizontal plane. Find the height, in metres, of the point of intersection of the lines joining the top of each pole to the foot of the other.

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.