Angles formed by parallel lines and a transversal
Use angle relationships (corresponding, alternate, co-interior) formed when a transversal crosses parallel lines to find a missing angle. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
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Two parallel lines are cut by a transversal. Angle A and Angle B are alternate interior angles. If Angle A = 48 deg, what is the measure of Angle B?
Answer: 48
See one solved, step by step
Two parallel lines are cut by a transversal. Angle A and Angle B are corresponding angles. If Angle A = 138 deg, what is the measure of Angle B?
📘 Worked solution
1Angle A and Angle B are corresponding angles.Two parallel lines cut by a transversal create equal corresponding angles.
2Angle B = Angle A = 138°These angles are always equal when the lines are parallel.
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