How Many Triangles are insid...
How Many Triangles are inside me?Correct answers: 123
The first user who solved this task is Maja Inkret.
#brainteasers #math #riddles
SandpaperIn 1834, the first U.S. invention of sandpaper was covered by four patents issued on this date to Isaac Fisher, Jr., of Springfield, Vt. These patents were titled "Coating Paper." (No X8246, -7) |