In the figure shown, segment AB is parallel to segment YZ. If AZ = 42 units, BQ = 12 units, and QY = 24 units, what is the length of segment QZ?
triangle AQB is similar to triangle ZQY
Since QY = 24 and BQ = 12
And QY + BQ = 36 = BY
Then QY = (2/3) BY
So... QZ = (2/3) AZ = (2/3) 42 = 28
Thank you CPhill