Question

find number of diagonals of a 8 sided polygon...plz give a right answer and not to google copy.. ​

Answer 1

Answer:

Hey mate! Here's your answer:

Step-by-step explanation:

We have to use the formula {n(n - 3)} / 2 to find the number of diagonals.

{8(8 - 3)} / 2

{8 * 5} / 2

40/2

20.

So there are 20 diagonals in a 8 sided polygon, or more specifically an OCTAGON.

HOPE IT HELPS YOU, PLS MARK IT AS THE BRAINLIEST AND PLS FOLLOW ME! :):):)

Answer 2

Step-by-step explanation:

a square (or any quadrilateral) has 4(4−3)/2 = 4×1/2 = 2 diagonals. an octagon has 8(8−3)/2 = 8×5/2 = 20 diagonals.