how many diagonals does a 8 sided polygon have?
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Answer:
The eight sided polygon has 20 diagonals.
To find:
- Number of diagonals in a 8 sided polygon.
Solution:
Number of diagonals in a polygon is given by.
- n(n - 3)/2
Here, n = number of sides.
For 8 sided polygon.
Number of diagonals = 8(8 - 3)/2
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 8(5)/2
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 40/2 = 20
Hence, a 8 sided polygon has 20 diagonals.
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