In triangle ABC, the side is 6cm 4mm, this side is 12mm shorter than side BC and 1cm 6mm

In triangle ABC, the side is 6cm 4mm, this side is 12mm shorter than side BC and 1cm 6mm longer than side AC, the perimeter of the triangle is calculated.

Since 6 cm 4 mm = 64 mm, the length of the BC side will be:

64 + 12 = 76 mm.

Since AB is 1 cm longer than AC 6 mm = 16 mm, then AC wound:

64 – 16 = 48 mm.

By definition, the perimeter is the sum of all sides, then it is equal to:

64 + 76 + 48 = 188 mm.

Answer: The perimeter of triangle ABC is 18 cm 8 mm.