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10 cards from this deck
A vector has size and direction, shown by arrows or coordinates.
A scalar only has size, like a plain number.
Collinearity means vectors are multiples, indicating a line.
They simplify proofs by reducing the need for diagrams.
Show one vector is a scalar multiple of the other.
Midpoint M = (A + B)/2 for points A and B.
They show equal opposite sides and intersecting diagonals.
They verify if lines are parallel or shapes are congruent.
Use vectors to show diagonals intersect and are equal.
Vectors effectively bridge algebra and geometry.
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