Respuesta :

altavistard

Answer:

x = 25/2

Step-by-step explanation:

We may apply the property of triangles that says the three angles must add up to 180 degrees.  Therefore:

x + 4 + x + 61 + 90 = 180

2x + 65 = 90, or

2x = 25, and so x = 25/2

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