Question

what is the number of diagonal in a octagon​

Answer 1

Answer:

20

an octagon has 8(8−3)/2 = 8×5/2 = 20 diagonals.

Answer 2

$\small \purple {\sf{quєѕtíσn !}}$

what is the number of diagonal in a octagon.

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• 20

an octagon has 8(8−3)/2 = 8×5/2 = 20 diagonals.