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Αντιγραφή του Vertically Opposite Angles (of 2 Intersecting Straight Lines

Author:
Elen, Lew W. S.
Topic:
Angles, Straight Lines
When 2 straight lines intersect each other, 2 pairs of angles opposite to each other are formed. Explore the these pair of angles in this activity. What can you say about the angles? Are they equal?

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