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1
Answer:
b) 50°
Step-by-step explanation:
x+3+x+20+x+7 = 180° (Straight angle)
3x + 30° = 180°
3x = 150°
x = 50°
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Answered by
2
U write
(x+3)+(x+20)+(x+7) = 180 degree
x+3+x+20+x+7=180 degree
3x + 30 = 180 degree
3x = 180 - 30
3x = 150 degree
x = 150/3
x = 50 degree
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