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Opposite Angles Are Always Equal – Watch This Insane GeoGebra Proof! Vertical Angles Theorem
Ever wondered why opposite angles are always equal when two lines cross? Here’s the cleanest, most satisfying proof you’ll ever see – using live GeoGebra! Drag the lines yourself and watch the magic: no matter how much you move them, vertically opposite angles stay 100% identical! This is the famous Vertical Angles Theorem (one of the ...
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