What is the value of x in the diagram below?
a 30
b 60
c 90
d 120
could you explain how you get the answer you so much.

Angles on a straight line=180degrees
180-120=60degrees
therefore the bottom most angle = 60degrees
angles opposite each other are equal
so angle opposite the bottom most is 60degrees
if angles on a straight line =180degrees :
square angle=90degrees
90+60=150degrees
180degrees-150degrees= 30degrees

Therefore the answer is A) 30