Question

find the diagonals of regular octagon
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Answer 1

Step-by-step explanation:

To find the diagonals, we have the formula that is...

= n(n-3) / 2

(Here n is equals to the no.of sides)

According to the question,

A regular octagon has 8 sides...

so,

= n(n-3)/2

= 8(8-3)/2

= 8(5)/2

= 40 / 2

= 20

Therefore, the regular octagon has 20 diagonals...

Hope!!! it helps you....