Respuesta :

stu118643

Answer:

It has 15 sides.

Step-by-step explanation:

( n-2 ) × 180 / n = 156

180n - 360 = 156n .


180n - 156n = 360

24 n = 360

n = 360/24 = 180/12 = 90/6 = 15 .

n = 15 sides.