how many diagonals are there in octagon?
Answers
Answered by
25
no of diagonals of a polygon = n(n-3)/2
where n is no of sides.
here n = 8
substitute values
we have,
8×5/2 = 20
so octagon has 20 diagonals
where n is no of sides.
here n = 8
substitute values
we have,
8×5/2 = 20
so octagon has 20 diagonals
neerjabinu:
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Answered by
8
Number of diagonals = [n(n-3)]/2
where
n=sides
octagon has 8 sides
its equals to [8(8-3)]/2
so [40]/2
so answer is 20
where
n=sides
octagon has 8 sides
its equals to [8(8-3)]/2
so [40]/2
so answer is 20
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