Геометрія
S_(1)=πR^2*150 ° /360 ° =π*8^2*5/12=80π/3 S_(2)=πR^2*150 ° /360 ° - S _( ΔABP)=(80π/3)-(1/2)*8*8*sin150 ° = =(80π/3)-16 S_(3)=πR^2*80 ° /360 ° =π*8^2*8/36=128π/9 S=S_(1)+S_(2)+S_(2)=(608π/9)-16 - о т в е т