Respuesta :

Hi1315

Answer:

20 sides

Step-by-step explanation:

Interior angle + exterior angle= 180

So,

let the unknown exterior angle be x

[tex]162 + x = 180\\x = 180-162\\x = 18 \degree\\[/tex]

Now,

360 / size  of    the exterior    angle = number of sides of the polygon

                                                            [tex]=\frac{360}{18} \\=20 sides[/tex]

hope this helps you

please let me know if you have another questions :-)