Задание 15 и 16
1)r=6; h=12*sin60^(o)=6sqrt(3) V=(1/3)Pir^2*h=(1/3)*Pi*6^2*6sqrt(3)=72Pisqrt(3) 2)r=6 ; h=6*tg30^(o)=6sqrt(3)/3=2sqrt(3) V=(1/3)Pir^2*h=(1/3)*Pi*6^2*2sqrt(3)=24Pisqrt(3)