Page 56 - 1300 Math Formulas
P. 56
CHAPTER 3. GEOMETRY
N
245. p = éê = Ç Ç ëáå ϕ=
O N O
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=
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3.16 General Quadrilateral
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páÇÉë=çÑ=~=èì~Çêáä~íÉê~äW=~I=ÄI=ÅI=Ç=
aá~Öçå~äëW=Ç N Ç I O =
^åÖäÉ=ÄÉíïÉÉå=íÜÉ=Çá~Öçå~äëW=ϕ =
fåíÉêå~ä=~åÖäÉëW=αI βI γI δ =
mÉêáãÉíÉêW=i=
^êÉ~W=p=
=
=
======= =
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Figure 27.
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246. α + β + γ + δ = PSM °=
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247. i = ~ + Ä + Å + Ç =
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