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No because an octagon has 8 sides whereas a triangle has only 3 sides but they are both polygons.

Q: How is a octagon and a triangle the same?

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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.

Three is to triangle as eight is to octagon.

A square or an Isoceles triangle NOT An acute triangle.also a diamondANS2:Any polygon can be drawn with all sides and angles equal. That sort of triangle is called an equilateral triangle and that sort of quadrilateral is called a square. Polygons with more sides are described as "regular" e.g., a stop sign is a regular octagon. Please see the link to understand why an equilateral octagon is not necessarily the same as a regular octagon.

a triangle is 180 degrees a square is 2 triangles so it is 360 degrees an octagon is 8 sides 720 degrees 180 times 4 = 720 degrees

A octagon is a octagon without the same angles as the others.

Related questions

octagon is 8 triangles points in the middle

And octagon is an 8 sided triangle. A hexagon is a 6 side triangle. "Oct" is a prefix that means 8. "Hex" is a prefix that means 6.

An equilateral triangle, a square, a rectangle, an octagon.

An octagon has 8 sides whereas a triangle has only 3 sides

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.

An Octagon contains 8 sides whereas a triangle contains only 3 sides

Three is to triangle as eight is to octagon.

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.

the number of sides

I am a rhombus or an equillateral triangle, pentagon, hexagon, octagon etc.

Triangle, octagon, and my favorite, dodecagon.

Octagon