Question

repede ex 12 si 14 repede plz

Answer 1

12)ab+bc+ca=10
a+2+a+2+a=10
3a=10-4=6
a=6:3
ca=2
ab=2+2=4
bc=2+2=4

14)ab+bc+ca=15
ab=bc-1=ca-2
ab=15-3=12
ab=12:3=4cb
bc=4+1=5cm
ca=5+1=6cm