Question

findmeasure of an angle X in the following figure

Answer 1

angle formula=(n-2) 180/n
putting n=6 in the equation
=(6-2) ×180/6
=4×180/6=120
therefore, x=120

hope this may help you

Answer 2

Sum of all angles=(n-2)180

(4)180

=720

x=720/6

x=120