Sankaku puzzles are a geometric based logic puzzle that focuses on finding the area of a triangle. The goal of each puzzle is to connect three dots to form a triangle with the specified area.
For example:
![](https://i0.wp.com/www.collectedny.org/wp-content/uploads/2022/04/image-13.png?resize=604%2C261&ssl=1)
Note: The pdf link above links to a paper and pencil version of Sankaku puzzles. The url links to an interactive Desmos activity exploring Sankaku puzzles.