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11 cards from this deck
Distance between two points in a Cartesian plane
d=(x2−x1)2+(y2−y1)2d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}d=(x2−x1)2+(y2−y1)2
Pythagorean theorem
Right triangle
∣x2−x1∣|x_2 - x_1|∣x2−x1∣ and ∣y2−y1∣|y_2 - y_1|∣y2−y1∣
Represents the distance ddd
Straight line
Identify coordinates (x1,y1)(x_1, y_1)(x1,y1) and (x2,y2)(x_2, y_2)(x2,y2)
Substitute values into the formula
Simplify to find ddd
13 units
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