(1)A=70 C=30 c= 20cm
B=180-70-30=80度
a/sinA=b/sinB=c/sinC
a=csinA/sinC=37.59cm
b=csinB/sinC=39.39cm
(2)A=34 B=56 ,c=68cm
C=90-34-56=90度
a/sinA=b/sinB=c/sinC
a=csinA/sinC=38.03cm
b=csinB/sinC=56.37cm
(1)A=70 C=30 c= 20cm
B=180-70-30=80度
a/sinA=b/sinB=c/sinC
a=csinA/sinC=37.59cm
b=csinB/sinC=39.39cm
(2)A=34 B=56 ,c=68cm
C=90-34-56=90度
a/sinA=b/sinB=c/sinC
a=csinA/sinC=38.03cm
b=csinB/sinC=56.37cm