Three circles inside an equilateral triangle - Tricky geometry maths problem

We are given an equilateral triangle which contains three circles, each of radius 4cm. The circles are inside the triangle such that they are touching each other and each circle has two edges of the triangle as tangents. Using this information, we need to find the perimeter of the triangle. Can you use basic GCSE/ high school maths skills to solve this tricky geometry problem? . . . #geometryproblems #geometry #geometrymath #mathproblems #trickymaths