If its a regular 8 sided octagon then each interior angle is 135 degrees
An octagon has 8 sides whereas an hexagon has 6 sides
135
Any value you like - between 0 and 360 degrees. The size of an individual angle can only be determined if the octagon is regular but you cannot assume that it is.
Do you mean sides? That's 8. If you mean sizes, as you spelled it, then a given octagon has only one size, but the shape generally referred to as an "octagon" can have an infinite number of sizes.
Not necessarily. If all sides are the same size, and all angles are also the same, then it is called a "regular octagon". But an irregular octagon is still an octagon - the only requirement is that it have 8 sides.
An octagon is a shape of unspecified size. It can cover an area of anything from nearly zero to several quadrillion square light years.
Eight triangles of equal size form a regular octagon.
If its a regular 8 sided octagon then each interior angle is 135 degrees
An octagon has 8 sides whereas an hexagon has 6 sides
135 degrees.
Octagon
135
Any value you like - between 0 and 360 degrees. The size of an individual angle can only be determined if the octagon is regular but you cannot assume that it is.
Do you mean sides? That's 8. If you mean sizes, as you spelled it, then a given octagon has only one size, but the shape generally referred to as an "octagon" can have an infinite number of sizes.
The measure of one of the regular octagon angles of the shape is 135 degrees, regardless of the size of the octagon. This means that the interior angles are all 135.
An octagon is any 8-sided 2-dimensional figure. It can be any size, so it can have any number of millimeters.