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What is Angle Relationships with Parallel Lines about?

The figure shows two intersecting lines forming four angles. Angles 1 and 3 are given as 122° and 78° respectively. Using the properties of parallel lines and transversals, the measure of angle 2 can be determined without direct calculation. Angle 2 is an alternate interior angle to angle 1, so it must equal 122°. The answer is a.

Author

Paulina Olivares

Language

EN