Respuesta :

Answer:

Explanation:

Here, we want to get the value of x

Mathematically, the sum of opposite interior angles equal the exterior angle on the third vertex

We have this as:

[tex]\begin{gathered} 16x\text{ + 48 = 28x} \\ 28x-16x\text{ = 48} \\ 12x\text{ = 48} \\ x\text{ = }\frac{48}{12} \\ x\text{ = 4} \end{gathered}[/tex]

Converse: In a triangle, the exterior angle is equal to the sum of opposite interior angles

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