Question

how many diagonals do a regular 8 side polygan have​

Answer 1

Step-by-step explanation:

• an octagon has 8(8-3)/2
• = 8×5/2
• =20 diagonal

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Answer 2

Answer:

For a polygon with n number of sides, the number of diagonals are n/2 * (n-2)

So the diagonals in an 8 sided polygon are 8/2 * (8-3)

=20 diagonals