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R2=36.75;R3=35;V=9;d=5;y=43;
t=acos((R2^2+d^2-R3^2)/(2*R2*d));
x=acos((R3^2+d^2-R2^2)/(2*R3*d));
V1=pi*R3^2*h*(pi-x)/pi;
V2=d*R2*sint*h;
V3=(pi*R2^3*tan(y)/3-pi*(R2-h*cot(y))^3*tan(y)/3)*t/pi;
V=V1+V2-V3;

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