CHAPTER 3. GEOMETRY=
=
Figure 50.
=- e= ãO−()o−êO=
=- â
ê
o
= ==
- O O
ONO â
êo
pp
= = ==
- pi=πã()o+ê=
=
- p=pN+pO+pi=π[oO+êO+ã(o+ê)]=
=
- ()pN pNpO pO
P
Ü
s= + + ==
- N[]O
O
N N â â
PÜp
êo
êo
N
PÜp
s = + +
dana p.
(Dana P.)
#1