b/sin48=y/sin56=c/sin76
y=8,97
c=10,5 C=76°
B)cosA=(b^2+c^2-a^2)/2bc
cosA=(36+16-25)/48=9/16
A=55,77°
cosB=(a^2+c^2-b^2)/2ac
cosB=(25+16-36)/40=0,125
B=82,8°
C=180-82,8-55,77=41,43°
b/sin48=y/sin56=c/sin76
y=8,97
c=10,5 C=76°
B)cosA=(b^2+c^2-a^2)/2bc
cosA=(36+16-25)/48=9/16
A=55,77°
cosB=(a^2+c^2-b^2)/2ac
cosB=(25+16-36)/40=0,125
B=82,8°
C=180-82,8-55,77=41,43°