A decagon has 10 corners. How many of the segments… | StemPy Lab

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A decagon has 10 corners. How many of the segments… | StemPy Lab

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A decagon has 10 corners. How many of the segments joining two of its corners are not sides?

MathematicsMediumHigh School (11–12)Algebra › Permutations and Combinations A-Level Board Exam IB

Created by StemPy Lab

A decagon has $10$ corners. How many of the segments joining two of its corners are not sides?

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