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Sergeu [11.5K]
3 years ago
15

I'm so incredibly confused on this. I will give brainliest for the correct answer.

Mathematics
1 answer:
o-na [289]3 years ago
4 0
Hey!!

here is your answer >>>

The interior angle A measures 77°

The exterior angle measures 130°

The sum of angles A and B is 130°

Yes, it's true, this a property of the triangle, the last question is 'true'

Hope my answer helps!
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Step-by-step explanation:

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