C =180-(a+b) => sinC =sin(a+b)
S(ABC) = 2R^2 sina sinb sin(a+b)
AB =2R sin(a+b)
H =AB tgy
V =Sосн *H =4R^3 sina sinb sin(a+b)^2 tgy
C =180-(a+b) => sinC =sin(a+b)
S(ABC) = 2R^2 sina sinb sin(a+b)
AB =2R sin(a+b)
H =AB tgy
V =Sосн *H =4R^3 sina sinb sin(a+b)^2 tgy