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
Edison patentIn 1891, Thomas A. Edison was issued U.S. patent No. 460122 for a "Process of and Apparatus for Generating Electricity" and No. 460123 for a "Phonogram-Blank Carrier." |