Q. Use the transversal to find the value of x.What is the measure of the purple angle?What is the measure of the blue angle?
Identify Relationship: Identify the relationship between the angles and the transversal. If the angles are alternate interior, corresponding, or co-interior, then they are equal or supplementary.
Assume Purple Angle: Assume the purple angle is x degrees. If the blue angle is on the opposite side of the transversal and is also x degrees, then they are alternate interior angles and thus equal.
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