Question

find number of diagonals of a 8 sided polygon...plz give a right answer..​

Answer 1

Answer:

20 diagonals

Step-by-step explanation:

hope this answer is clear

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.