Q: In maths how many degrees does an octagon add up to altogether?

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The 8 interior angles of an octagon add up to 1,080 degrees.

The interior angles of a regular or irregular pentagon always add up to 540 degrees. So for a regular pentagon, one angle is 108 degrees. 720°

1,080

An octagon has 8 sides and 8 interior angles that add up to 1080 degrees.

720 degrees on the interior. 360 on the outside.

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Interior: 900 degrees Exterior: 360 degrees

The sum of the interior angles of an octagon is equal to 1080 degrees.

450 is the degrees

The 8 interior angles of an octagon add up to 1,080 degrees.

135 degrees * * * * * But only if it is a REGULAR octagon. And there is no reason why that should be the case.

The interior angles of a regular or irregular pentagon always add up to 540 degrees. So for a regular pentagon, one angle is 108 degrees. 720°

8

1,080

1,080°

1,080°

An octagon has 8 sides and the sum of its interior angles add up to 1080 degrees.

135 degrees