0
It depends how big it is. But the rule is: Side length x 8 = Perimeter.
For example, if one side was eleven centimeters long then the perimeter would be P= 11 x 8. It would be eighty-eight centimeters.
Note: This rule only works for regular octagons. If you need to find the perimeter of an irregular octagon, then you have to measure each side and add up the measurements of each side.
Still curious? Ask our experts.
Chat with our AI personalities
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
MaxineI respect you enough to keep it real.
Chat with Maxine
JudySimplicity is my specialty.
Chat with JudyAdd your answer:
Earn +20 ptsQ: What is the perimeter of octagon?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
What is the perimeter of an octagon in millimeters?
If it's a regular octagon, the perimeter is 8 times the length of one side.
A regular octagon has a side length of 9 mm. What is the perimeter?
The perimeter is 72.
What is the perimeter of a regular octagon with a 15cm sides?
Perimeter = 8*15 = 120 cm
What is the area for an octagon with a fixed perimeter of 300?
Approximately 6,789.98 units2
How do you find perimeter of an octagon?
Just add together its 8 sides
Trending Questions
Digits of pi?
What plus 16 equals 100?
Which number lies between 7 and 8 on a dart board?
What is an angle called when it is 108 degrees?
Is the following true or false when you toss a coin 20 times you will always get 10 heads and 10 tails?
What is 8 divided by 10?
When divide a certain number by 8 I get a quotient of 24 and a remainder of 5. What is the number?
What is 34 times 25?
Which is less -20 or 19?
What is the nth term for 4 13 28 49 71?
What is 144 divided by 7?
How many diagonals does a quadrilateral?
Is infinity in between every number?
How much is mid five figures?
Is one third larger than one fourth?
What is 8x - 12?
What does the term hm stand for in math?
What is the exponent of 1 1 1 1 1 1 1 1 1?
What is the exterior angle of a 9 sided polygon?
How long is .3 in hours?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.