Answer:
I know this!! the answer is 56!!
Explanation:
How many lines make up a octagon? That's right! 8! So Times 8 by 7 and end up with the answer 56!! You can't tell me I'm wrong! It's Common Sense People :)
Answer: 56
The perimeter is just adding up all of the sides and we know an octagon has 8 sides, so you can just do 8 by 7 which is 56.
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