Q: What shapes make up an octagon?

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making an octagon using diamond shapes

Five shapes that can be constructed are octagon, hexagon, square, triangle, and rectangle.

Eight triangles of equal size form a regular octagon.

They're both shapes... ;) Also: the sum of the angles that make them up fit the equation 180(x-2) where x is the number of sides. E.g. a triangle has 3 sides so the total angle sum is 180. An octagon has 5 sides so the total angle quantity is 900.

There are hundreds of shapes; some shapes are square, triangle, circle, rectangle, oval, octagon, hexagon, pentagon, cube, cylinder, and lots of combinations of shapes that form new shapes.

Related questions

making an octagon using diamond shapes

An octagon

an polygon

They are both shapes and an octagon can be made up of six or more triangles. Other than that they are not similar. A triangle must have three sides. An octagon must have eight sides.

n * (n-3)/2

octagon

It is an octagon I think!

Yes.

Triangle Quadrilateral Pentagon Hexagon Heptagon Octagon Nonagon

a stop sign

An octagon has eight sides.

Eight, possibly.