CHAPTER 3. GEOMETRY = = Figure 20. = ~ + Ä 216. è = = O = ~ + Ä 217. p = ⋅ Ü = èÜ = O = = = 3.10 Isosceles Trapezoid = _~ëÉë=çÑ=~=íê~éÉòçáÇW=~I=Ä= iÉÖW=Å= jáÇäáåÉW=è= ^äíáíìÇÉW=Ü= aá~Öçå~äW=Ç= o~Çáìë=çÑ=ÅáêÅìãëÅêáÄÉÇ=ÅáêÅäÉW=o= ^êÉ~W=p= = = 38