Answer:
X=8
Step-by-step explanation:
First you need to find the measure of each interior angle:
180-77=103
180-59=121
180-66=114
180-62=118
Next you need to add all of the know values together and subtract from the total number of degrees inside of a pentagon (540):
103+121+114+118=456
540-456=84
Finally you will need to create and solve an equation in order to solve for x:
180=84+(12x)
-84 -84
96=12x
96/12=12x/12
8=x
Hope this Helps :)
