Answer:
x = 18
Step-by-step explanation:
supplementary angles is equal to 180°
3x + 126° = 180°
3x = 180° - 126°
3x = 54
3 3
checked: x = 18
3(18) + 126° = 180°
54° + 126° = 180°
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Answers & Comments
so
180-126
(126 is the given angle from the right side)
= 54
54/3
= 18
The answer is x=18°
HOPE THIS HELPS
Answer:
x = 18
Step-by-step explanation:
supplementary angles is equal to 180°
3x + 126° = 180°
3x = 180° - 126°
3x = 54
3 3
x = 18
checked: x = 18
3x + 126° = 180°
3(18) + 126° = 180°
54° + 126° = 180°