1.

Two parallel lines are cut by a transversal such that one of the interior angles is 57. Find each of theinterior angle .

Answer»

Answer:

Let the INTERIOR angle be a and b

a=57

Angle A +Angle B =180...... ( sum of interior angle is SUPPLEMENTARY)

57+b = 180

b = 180— 57

b = 123°

The measurement of Angle B is 123°



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