Respuesta :

Answer:

x=144

Step-by-step explanation:

Use the polygon formula (n-2) * 180 where n is the number of points

This polygon has 8 points

(8-2)*180 = 6 * 180 = 1080

136+124+141+158+116+129+132+x=1080

x=144

RELAXING NOICE
Relax