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Answer :

Joshnathanlee2006go

Answer:

it is a, or n=15

Step-by-step explanation:

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Answer:

n=15 (No it's not cap)

Step-by-step explanation:

if the interior angle is 156 then to find the exterior angle we just do 180-156 which equals 24

360/24=15 so there are 15 sides

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