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📐 Mathematics - Class 8
Lesson 13 · Lines and Angles

Lines and Angles Presentation

MathematicsSubject
8 minEstimated read
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Mathematics, Grade 8

Lines and Angles

Parallel lines · The transversal · Three angle pairs

What We Learn Today

📏

What parallel lines are and what perpendicular distance means

✂️

When a line is a transversal and when it is not

🔺

Alternate, corresponding and co-interior angles

🧮

Finding the other angles from one given angle

Definition
Three Checks for a Transversal
COUNT
There must be at least two straight lines.
CUT
A further line must cut across all of them.
SEPARATE
The points where it cuts must be different points.

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Presenter notes: Open by reminding the class of the edges of a river, a road and a table. Say that today we name the angles a transversal makes and learn the rules that go with them.