All sides of the triangle are 12 cm long. Each side has been reduced by 2 cm.

All sides of the triangle are 12 cm long. Each side has been reduced by 2 cm. Find the perimeter of the resulting triangle.

Since the side of the triangle was reduced by 2 cm, we get 12 cm minus 2 cm,
12 – 2 = 10 (cm)
That is, one side will be 10 cm.
To calculate the perimeter of the triangle, you need to add all the sides. There are three sides in a triangle, therefore you need to fold three sides, the result is
10 + 10 + 10 = 30
Therefore, the perimeter of the triangle is 30 cm.
Answer: 30 cm.