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Gre4nikov [31]
3 years ago
11

I need help a$ap.......................

Mathematics
1 answer:
Ivahew [28]3 years ago
8 0

Answer: OPTION D

Step-by-step explanation:

Based on the figure, we can say that:

m\angle ABC+m\angle ABD=m\angle CBD

Therefore, we can substitute values and solve for "x".

Then, we get that the value of "x" is:

85\°+\frac{1}{2}x+30 =140\°\\\\115\°+\frac{1}{2}x=140\°\\\\\frac{1}{2}x=140\°-115\°\\\\x=2*25\\\\x=50

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