Question 1192641: Find the number of diagonals using a formula. (Note: Remember to subtract the 6 segments
connecting the points H,O,N,E,S,T from your solution because these segments are the sides
not adiagonal.)
Answer by ikleyn(52781) (Show Source):
You can put this solution on YOUR website! .
Regarding the formula, I just answered in my previous post under this link
https://www.algebra.com/algebra/homework/Permutations/Permutations.faq.question.1192639.html
Regarding the rest (letters, plot, segments, counting, not-counting etc.), why don't you make this simple exercise on your own ?
Why the tutors should do ?
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