A stop

A stop sign is in the shape of an 8-sided polygon (regular octagon) in which each side is 12 1/2 in. What is the perimeter?

Correct answer:

p =  100 in

Step-by-step explanation:

a=1221=12+21=212 2+1=224+1=225=12.5 in n=8  p=n a=8 225=28 25=2200=100 in

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