Maths-
General
Easy

Question

How many diagonals does a regular -g on have?

  1. n over 2
  2. fraction numerator n left parenthesis n plus 3 right parenthesis over denominator 2 end fraction
  3. fraction numerator n left parenthesis n minus 2 right parenthesis over denominator 2 end fraction
  4. fraction numerator n left parenthesis n minus 3 right parenthesis over denominator 2 end fraction

hintHint:

  • A polygon having n equal sides and n equal vertices is called a regular n-gon.

The correct answer is: fraction numerator n left parenthesis n minus 3 right parenthesis over denominator 2 end fraction


    • We have been given in the question information about a polygon named n-gon
    • We have to find out the diagonals of a regular n-gon from the given four options provided.
    Step 1 of 1:
    A regular n-gons polygon has

    fraction numerator n left parenthesis n minus 3 right parenthesis over denominator 2 end fraction
    diagonals
    Hence, Option D is correct.

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