Respuesta :

snog

Answer:

Because all consecutive angles in a parallelogram are supplementary, m∠SVU = 180 - 57 = 123°.

devishri1977

Answer:

Step-by-step explanation:

In a parallelogram, sum of adjacent angles is 180

∠TSV + ∠SVU = 180

57 + ∠SVU = 180

∠SVU = 180 - 57

∠SVU = 123°