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actually its really hard and scientist know how but they still dont know the answer but i can still tell you how to do it

first you need to draw a perfect octagon after that you draw tiny little bity squares inside it all being the same size not a tad off then find how many square milimeters one of them has and times that by how many squares you drew you then you draw that ammount of those size of squares of the answer then you draw a circle around that and you find the circumpherence of that circle and time that circumpherence by 3.14 i know what you are think why would we do that when we did it for the circle all ready but you have to do it again for the octagon

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Q: What is the circumference of an octagon?
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If an octagon has a circumference of 24 what is its diameter?

I assume that when you say "circumference", you really mean "perimeter" of the octagon. I also assume that by saying, "diameter", you really refer to the widest distance between two points on the octagon. An octagon has 8 sides, so if you divide 24 by 8, then you have 3 units of length per side. Then if you were to draw lines from the center of the octagon out to the ends of the segments of the perimeter, then those lines would be 45 degrees apart from each other. In order to find the "diameter", you need to find the length of one of those lines drawn from the center of the octagon, then double it. To do this, you need to perform some trigonometry. To perform the trig, the easiest thing would be to use a right triangle. By drawing a line from the center of the octagon, perpendicular (at a right angle) to one of the outside segments of the octagon, you bisect the 45 degree angle created by the two lines on either side of it. So then you have created a right triangle inside of the octagon, with a 1.5 unit long side, and an opposing 22.5 degree angle. In this case, you want to find out the length of the longest side of this triangle, which is the hypotenuse. So, the sine of the angle 22.5 degrees is equal to 1.5 units divided by the length of the hypotenuse. If you solve for the hypotenuse, you get 3.92 units, rounded. Double this gives you 7.84 units across the octagon.


What is the name of a prism that has 10 sides?

An octagon-based prism.An octagon-based prism.An octagon-based prism.An octagon-based prism.


How many angles are in a octagon?

A octagon has 8 sides, 8 angles. An octagon is an eight sided shape


What is the 3D name for an octagon?

What is the 3d name for octagon


Is an Octagon a parallelogram?

no its not because a parallelogram has 4 sides and a octagon has 8

Related questions

How do you find the circumference of an octagon?

You add it up


What length do you need to cut pieces of wood to make an octagon with a circumference of 46 inches?

There is too much extra needed information before an answer can be given. Is the wood to make only the circumference, or would it make all the surface, what is the width of the wood, what design to make the octagon.


What unit is circumference measured with?

Circumference is the distance around an object. Most usually applied to a circle,but any closed figure, building, octagon, etc, all have a circumference. Even anon-regular object such as a tree or a meteor crater has a circumference. Theunits used are entirely up to the measurer. Whether Imperial, SI, or whateveryou like, a circumference is always described in a unit of length.


What units is associated with measuring circumference?

Circumference is the distance around an object. Most usually applied to a circle,but any closed figure, building, octagon, etc, all have a circumference. Even anon-regular object such as a tree or a meteor crater has a circumference. Theunits used are entirely up to the measurer. Whether Imperial, SI, or whateveryou like, a circumference is always described in a unit of length.


How many angles re on the interior of any octagon?

An octagon has 8 angles.An octagon has 8 angles.An octagon has 8 angles.An octagon has 8 angles.


What is the opposite of a octagon?

an octagon...


Is an octagon a plane shape?

No, but an octagon is.


If an octagon has a circumference of 24 what is its diameter?

I assume that when you say "circumference", you really mean "perimeter" of the octagon. I also assume that by saying, "diameter", you really refer to the widest distance between two points on the octagon. An octagon has 8 sides, so if you divide 24 by 8, then you have 3 units of length per side. Then if you were to draw lines from the center of the octagon out to the ends of the segments of the perimeter, then those lines would be 45 degrees apart from each other. In order to find the "diameter", you need to find the length of one of those lines drawn from the center of the octagon, then double it. To do this, you need to perform some trigonometry. To perform the trig, the easiest thing would be to use a right triangle. By drawing a line from the center of the octagon, perpendicular (at a right angle) to one of the outside segments of the octagon, you bisect the 45 degree angle created by the two lines on either side of it. So then you have created a right triangle inside of the octagon, with a 1.5 unit long side, and an opposing 22.5 degree angle. In this case, you want to find out the length of the longest side of this triangle, which is the hypotenuse. So, the sine of the angle 22.5 degrees is equal to 1.5 units divided by the length of the hypotenuse. If you solve for the hypotenuse, you get 3.92 units, rounded. Double this gives you 7.84 units across the octagon.


What is the name of a prism that has 10 sides?

An octagon-based prism.An octagon-based prism.An octagon-based prism.An octagon-based prism.


Why is a octagon not a polygons?

That is because an octagon is singular and polygons is plural. An octagon is a polygon, and octagons are polygons but a octagon cannot be a polygons.


Image of a not regular octagon?

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


Volume of octagon?

well the volume of an octagon would be different for every octagon.