Square Puzzle
Two puzzles in one! Can you make a square with four of the polygons? What about all five?
Seen on reddit, from u/bryandavis1974, https://www.reddit.com/r/edtech/comments/ibg6md/how_can_i_digitize_a_5_piece_puzzle_to_manipulate/.
Drag pieces or move with the solid vertices, turn with the open vertices.