please help with answer with explaination
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x + 3x = 180 (adjacent angles are supplementary)
4x = 180
x = 180/4
x= 45
3x = 3 × 45
= 135
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Answered by
0
Answer:
answer is x=60.
Step-by-step explanation:
step by step explain
3x=180
x=180/3
x=60
3x=60×3=180
because, _______=180degree
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