Answer:
54°
Step-by-step explanation:
Formula we use,
→ Exterior angle + Interior angle = 180°
The required value of x will be,
→ 126° + x = 180°
→ x = 180° - 126°
→ [ x = 54° ]
Hence, the value of x is 54°.
126° + x = 180°
x = ( 180 - 126 )°
x = 54°
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