Respuesta :

Answer: y=54

Step-by-step explanation: since a triangles angles =180 and you just have this equation 180-72=2y that equals 108=2y

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Answer:

The answer is B. 54 degrees.

Step-by-step explanation:

A triangle must be 180 degrees when all three angles are added together. 180 minus 72 is 108 degrees, which you have to divide by two, because there are two y values.

You can check this by adding 72 plus 54 plus 54 to get 180 degrees total.

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