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ถึงการสอบครั้งถัดไป 14–15 พฤศจิกายน 2569:

Space Coordinate System Interactive Demo

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Key Formulas

d=(x2−x1)2+(y2−y1)2+(z2−z1)2d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}M=(x1+x22,y1+y22,z1+z22)M = \left(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}, \frac{z_1+z_2}{2}\right)

Related Practice

space coordinatespatial distancemidpoint formulasection pointCSCA math