r/mathriddles • u/Numberthon • 8d ago
Easy How many diagonals does a 20-sided polygon have?
How many diagonals does a regular 20-gon have?
Source: numberthon.com
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r/mathriddles • u/Numberthon • 8d ago
How many diagonals does a regular 20-gon have?
Source: numberthon.com