4)
2.5cm
1.2m
2.5cm
1.5cm
1cm
2cm
5cm
Perimeter =
cm

Answer:
Perimeter = 15.5 cm
Step-by-step explanation:
Perimeter = sum of all sides
Perimeter = 5 + 1 + 1.5 + 2.5 + 2.5 + (5-1.5-2.5) + 2
perimeter = 5 + 1 + 1.5 + 2.5 + 2.5 + 1 + 2
perimeter = 15.5cm