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Octagon = 8 sides, 8 angles.

If it is a regular octagon, then use the sum of angles formula, (n - 2)180°, where n is the number of sides.

(n - 2)180° = (8 -2)180° = 6 x 180° = 1,080°

Thus each angle is 135° (1,080/8).

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16y ago

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