14=(1/2)*7*5*sinY
sinY=28/35=4/5
cosY=-3/5
AB^2=49+25-70cosY
AB^2=74+70*(3/5)=74+42=116
AB=2√29
R=AB/(2sinY)=(2√29)/(8/5)=1,25√29
14=(1/2)*7*5*sinY
sinY=28/35=4/5
cosY=-3/5
AB^2=49+25-70cosY
AB^2=74+70*(3/5)=74+42=116
AB=2√29
R=AB/(2sinY)=(2√29)/(8/5)=1,25√29