PREVIEW
... e. He pointed to the title and inquired, "Professor, I'm still not quite sure about the Cartesian coordinate system you mentioned today, especially this question..."
"If you want to determine the distance between two coordinate points, you need to use the Pythagorean theorem we discussed earlier. You can mark the differences in the horizontal and vertical coordinates on the axes, and then connect them with a line. This way, it becomes a right-angled triangle formed by joining two coordin ...
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v3 Chapter 2272 Da Luo (completed in the book)![[R18] Drip-Fed](http://static.novelbuddy.com/images/r18-drip-fed.png "[R18] Drip-Fed")
Chapter 20: Safe Leaf (1)
~ End this testimonial
~ Testimonials
