Intro & Concept
Angles measure how far one line turns from another. Lines can be parallel, perpendicular, or intersecting. Common angles: acute <90°, right = 90°, obtuse >90°.
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Animated Tutorial Video
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Interactive Practice
1) Identify angle: 45°
2) Identify angle: 90°
3) Identify lines: never meet
4) Lines intersect at right angle
Random Challenge
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⚡ Speed Quiz
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