Question

A polygon has 27 diagonals. How many
sides does it have?​

Answer 1

Answer:

No. of sides of polygon having 27 diagonal are 9..

Answer 2

Answer:

let us come to the problems

No of daigonals = n(n-3)/2=27

n(n-3)=24

n^2 3n-54=0

n^2 -9n+6n -54=0

n(n-9) +6(n+9)=0

(n-9) (n+6)=0

n=9, -6