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A triangle with interior angles measuring a, b, and c degrees and exterior
angle measuring d degrees is shown above. If d measures 140°, what is the
sum of a and b?

A triangle with interior angles measuring a b and c degrees and exterior angle measuring d degrees is shown above If d measures 140 what is the sum of a and b class=

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Answer:

That would 40 degrees.

(Sorry I can't explain rn) It would have to do with exterior angles.

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