5 overlapped triangles arranged to make a pentagon but also a cool pentagram in the middle 5 重疊 三角形 5 重疊的三角形
this is as close as you can get making a pentagon with triangles that don't overlap, that is with them pointing inward towards the center 五角大樓 三角形 幾乎五角大樓
I haven't been uploading things lately to openclipart since I'm trying to sell my art, but this is a very special one that I think should be shared with the world. There are some amazing illusions that can be done and this is one of them. 神聖 雙 五角大樓 神聖的雙五角大樓