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wolverine [178]
3 years ago
12

HELPPPPP ME PLEASE!!!!

Mathematics
2 answers:
Rufina [12.5K]3 years ago
6 0

Answer:

this is tough

Step-by-step explanation:

Rzqust [24]3 years ago
5 0

Answer:

100 degrees

Step-by-step explanation:

The three angles inside a triangle always add up to 180

so, 180-43-57 is 80

But that's the angle inside the triangle. notice that that angle (ACD) and BCA make a straight line.  That means they add up to 180. Therefore, 180-80=100 degrees.

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