12. Find the value of x.
How many sides does the polygon have?
87°
92°
105°
135°
What is the sum of the angles of this polygon?
Equation:
![12 Find the value of x How many sides does the polygon have 87 92 105 135 What is the sum of the angles of this polygon Equation class=](https://us-static.z-dn.net/files/d59/97b5489c0ec4993b26896e5f5d44a9fa.png)