When three equilateral triangle with measure of 2 cm each side are cut from the corners of the bigger equilateral triangle with measure of 6 cm each side, a regular hexagon will remain.
Hexagon has six sides, and each side measures 2 cm.
Perimeter of regular hexagon = 6 (side)
= 6 (2cm)
= 12 cm.
The perimeter of the resulting figure, a regular hexagon, is 12 cm.
Please click image below to view the illustration.