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12 cards from this deck
(x2−x1)2+(y2−y1)2\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}(x2−x1)2+(y2−y1)2
Find how far apart two points are on the Cartesian Plane
(x1+x22,y1+y22)\left(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}\right)(2x1+x2,2y1+y2)
Point exactly halfway between two points on a line segment
Label the points as x1x_1x1, y1y_1y1, x2x_2x2, y2y_2y2
To avoid mistakes, especially with negative numbers
Brackets, exponents, then addition
555 units
(5,5)(5, 5)(5,5)
Add both x-coordinates and divide by 222
Add both y-coordinates and divide by 222
Distance between points AAA and BBB
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