The perimeter would be 16 meters.
Just add its 8 sides together in meters
8 (measure of each side) x 8 (total sides of an octagon) = 64cm
No
I'm not sure what mile metres are, but a regular octagon with a side of 70 whatevers will have a perimeter of 560 whatevers.
The perimeter of an octagon is 64 only if it is a regular octagon and the length of one side is 8. An irregular octagon may or may not have a perimeter of 64 (whatever units of measure you choose to use) depending on what the lengths of the individual sides are.
The perimeter of a octagon is the sum of all its sides.
32cm (8 sides x 4cm = 32cm)
perimeter = sum of sides. Octagon has eight sides. The sides in this example are each 16 inches. Eight times sixteen is one hundred and forty four. JHC!
It is: 8*2.5 = 20 cm
It is the sum of the lengths of the octagon's eight sides.
You say these things to yourself: -- "The perimeter is the distance all the way around the octagon." -- "The octagon has eight sides." -- "So, if it's a 'regular' octagon, then all the sides are the same length, and each side must be 1/8 of the perimeter." -- If it's not a 'regular' octagon, then it has some longer sides and some shorter ones, and the perimeter doesn't help me find the lengths of the sides.
The perimeter is 56.