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12 cards from this deck
Pythagoras' theorem
Right-angled triangle
Hypotenuse
Difference between x-coordinates
Difference between y-coordinates
(x2−x1)2+(y2−y1)2\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}(x2−x1)2+(y2−y1)2
555 units
To ensure positive values
No, distance is always positive
Always draw a diagram
No, because you square the result
Distance should be longer than either the horizontal or vertical distance alone
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