yan7vs7bam yan7vs7bam

22-03-2021
Mathematics

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Respuesta :

TylerJCoon TylerJCoon

22-03-2021

Answer:

81 Degrees

Step-by-step explanation:

The triangles are congruent and a triangle is 180 degrees total. So, 57+42=99. 180-99=81

So the answer is 81 degrees.

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