When two lines cross, they make angles — and those angles follow secret rules! Let's uncover them.
✖️Intersecting lines: Lines that cross at one point, forming 4 angles.
📏Linear pair: Two angles next to each other on a straight line — they always add up to 180°.
🦋Vertically opposite angles: The angles across from each other when two lines cross — they're always EQUAL.
⊥Perpendicular lines: Lines that cross to make all 4 angles equal — each one is a right angle (90°).
🚃Parallel lines: Lines that never meet, no matter how far you extend them — like railway tracks.
🚧Transversal: A line that crosses two other lines, forming 8 angles. If corresponding angles are equal, the two lines are parallel!
Try thisTwo lines cross. One angle is 120°. Its linear-pair neighbour = 180° − 120° = 60°, and the angle vertically opposite to 120° is also 120°
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