, . . .46 :
.46.
- .
.46 10= 70.00 , 11 =170.00 , 12 = 44.16 ,
10 =(10.180) /pR = (70.00 .180) /3.1416.200 =20.053.
11 =(11.180) /pR =(170.00 .180) /3.1416.200 =48.701.
12 =(12.180) /pR =(44.16 .180) /3.1416. 200 =12.651.
X10=R. sin10=200.00. sin20.054 =68.58 ,
Y10 =2R. sin2(10/2)=400.00. sin 2(20.054/2)=12.13 ,
X11=R. sin11=200.00. sin 48.702 =150.26 ,
Y11=2R. sin2(11/2)=400.00. sin 2(48.702/2)=68.00 ,
X12=R. sin12=200.00. sin12.651 =43.80 ,
Y12=2R. sin2(12/2)=400.00. sin 2(12.651/2)=4.86 .
)
, . (.46), ,
n = R. sin(nE), Yn = R - R. cos(nE) = 2R. sin2(nE/2),
, .. = . 180 /pR.