How many triangles?
MATH PUZZLE: How many triangles?Correct answers: 78
The first user who solved this task is Djordje Timotijevic.
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Adam SedgwickDied 27 Jan 1873 at age 87 (born 22 Mar 1785). English geologist who first applied the name Cambrian to the geologic period of time, now dated at 570 to 505 million years ago. |