Respuesta :

Using the formula for an angle formed by two secants, we have:

∠XYZ = 1/2*(m arc XZ - m arc TS)

∠XYZ = 1/2*(114° - 36°) (Replacing)

∠XYZ = 1/2*(78° ) (Subtracting)

∠XYZ = 39° (Multiplying by the fraction)

The answer is the option A.

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