This is just how to make a 3D triangle, it's really easy, you only need 3 sheets of square paper, any size is fine, and you put the pieces together like a puzzle and then you have a totally awesome 3D triangle!!!!!
by See & Do
by wildinvention
by Antoine Snake Puzzle Tutorials
by All In One Craft
by Craft And Art School
by KidsCartoonTV
by Tim Tim TV