What is the perimeter of triangle ABC with sides: a) AB = 3 cm, BC = 4 cm 5 mm, AC = 5 cm 3 mm

What is the perimeter of triangle ABC with sides: a) AB = 3 cm, BC = 4 cm 5 mm, AC = 5 cm 3 mm b) AB = BC = 4 CM, AC = 7 cm 3 mm c) AB = BC = AC = 6 cm

What is the perimeter of a triangle ABC with sides:
a) AB = 3 cm, BC = 4 cm 5 mm, AC = 5 cm 3 mm
b) AB = BC = 4 CM, AC = 7 cm 3 mm
c) AB = BC = AC = 6 cm
The perimeter of a triangle is the sum of all the lengths of its sides AB + BC + AC.
So for all options the solution is as follows:
a) 3 + 4.5 + 5.3 = 12.8cm = 12cm 8mm
b) 4 + 4 + 7.3 = 15.3cm = 15cm 3mm
c) 6 + 6 + 6 = 18 cm