Question

find the value of x​

Answer 1

Step-by-step explanation:

IN A QUADRILATERAL....

SUM OF ALL ANGLES = 360

SO,

30+120+90+X°=360

X=220

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Answer 2

Answer:

120°

Step-by-step explanation:

We know, Sum of angles of a quadrilateral = 360°

Therefore,

30° + 120° + 90° + x = 360°

x + 240° = 360°

x = 360° - 240° = 120°