Question

What is the value of x?
Please help

Answer 1

Explanation:

`360 = 60 + 4x \\ 360 - 60 = 4x \\ 300 = 4x \\ (300)/(4) = (4x)/(4) \\ x = 75`

The total internal angle of the polygon is 360°. Since there are 4 unknown angles but the same, we would just add all those to 60° to equal a full 360°.