Page 63 - 1300 Math Formulas
P. 63
CHAPTER 3. GEOMETRY
3.20 Sector of a Circle
=
o~Çáìë=çÑ=~=ÅáêÅäÉW=o=
^êÅ=äÉåÖíÜW=ë=
`Éåíê~ä=~åÖäÉ=Eáå=ê~Çá~åëFW=ñ=
`Éåíê~ä=~åÖäÉ=Eáå=ÇÉÖêÉÉëFW=α=
mÉêáãÉíÉêW=i=
^êÉ~W=p=
=
=
=
=
Figure 35.
=
267. ë = oñ =
=
πo α
268. ë = =
NUM °
=
269. i = ë + O o =
=
270. p = oë = o O ñ = πo O α ==
O O PSM °
=
=
53
