Question

solve this question, it's answer is 108, but I don't know how to solve the problem, please help

Answer 1

As the sum of angle of a Pentagon is 540degree

Therefore
there are 5 sides
540÷5
=108 degree

all the Angeles are of 108 degree
Therefore x=108

Answer 2

as it is a regular pentagon all angles are equal.
its sum of angles will be=540° by angle sum property.
each angle= 540/5
= 108°
x is also an angle therefore x=108°