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 has been 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, all sides must be folded. There are three sides in a triangle, therefore you need to add three sides, the result is 10 + 10 + 10 = 30 Therefore, the perimeter of the triangle is 30 cm.
Answer: 30 cm.