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What is the value of x in the diagram below?

A 30
B 60
C 90
D 120
could you please explain how you get the answer thank you so much.

What is the value of x in the diagram below A 30 B 60 C 90 D 120 could you please explain how you get the answer thank you so much class=

Respuesta :

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

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