Asked by marko
find the number of diagonals in a 14 sides polygon
can you help me wiht this?
can you help me wiht this?
Answers
Answered by
marko
i got 14
is that right?
is that right?
Answered by
Rezu
The formula for finding the amount of diagonals in a polygon is n(n-3)/2.
So 14(14-3)/2 = 77 Diagonals
Or Im not sure if this is it
So for n=8, we have 8*5/2=20.
I think it's 77 but Im not sure.
So 14(14-3)/2 = 77 Diagonals
Or Im not sure if this is it
So for n=8, we have 8*5/2=20.
I think it's 77 but Im not sure.
Answered by
Ms. Sue
Nope.
Study this site carefully.
http://www.mathopenref.com/polygondiagonal.html
Study this site carefully.
http://www.mathopenref.com/polygondiagonal.html
Answered by
Rezu
I thought he was talking about a 14 sided polygon so it would have 77. When you go on that website you just gave and make the polygon have 14 sides it says 77. But Im not sure. :/
Answered by
Ms. Sue
I think you're right, Rezu.
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