MathDB

1995.4

Part of May Olympiad L1 - geometry

Problems(1)

smallest perimeter of length on surface on a triangular base

Source:

5/11/2019
We have four white equilateral triangles of 33 cm on each side and join them by their sides to obtain a triangular base pyramid. At each edge of the pyramid we mark two red dots that divide it into three equal parts. Number the red dots, so that when you scroll them in the order they were numbered, result a path with the smallest possible perimeter. How much does that path measure?
geometryperimeterpyramid