# GoGeometry Action 95!

- Author:
- Tim Brzezinski

Creation of this applet was inspired by a tweet from Antonio Gutierrez (GoGeometry).
In addition to proving that the = .

**pink point is the midpoint**of**this segment****drawn parallel to both bases**,**prove that this segment has a length equal to the harmonic mean**of the trapezoid's base lengths. Recall the**harmonic mean of 2 numbers**is defined to be the*a*and*b***reciprocal of the average (arithmetic mean) of these numbers' reciprocals.**In essence, the**harmonic mean of**=*a*and*b*