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School Continuing with our work, let us recall an important concept: remember the Pythagorean Theorem? In the context of study that involves circles we must address the Reduced Equation of Circle Equation and Developed General or the circumference, because these reveal important to accomplish transactions with or on elements of the circumference. Consider: See Figure 3 and look in- terpretá it, following the steps below to get to the building that will get the "reduced equation" of a circle. Figure 3: circumference in the Cartesian plane If you look carefully, you will notice that in Figure 4, Figure translated into prominence and internal circumference in Cartesian Plane, is a right triangle. Thus, using the well-known Pythagorean theorem, we have: The distance from point P to point C is the radius of the circle, so we call the segment r. The distance from point A to point C is called (x - a), and the distance from point P to point A is referred to (y - b). Figure 4: triangle translated the circumference of the Cartesian Plane of Figure 3
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Škola Nastavljajući s našim radom, prisjetimo važan koncept: sjetite Pitagorin poučak? U kontekstu istraživanja koja uključuje krugove moramo obratiti smanjene jednadžba krug jednadžbe i razvijen tajnika ili opsega, jer je to važno otkriti kako bi ostvarili poslove s elementima ili na obodu. Razmislite: Pogledajte Slika 3 i gledati u- terpretá ga, slijedeći korake u nastavku doći do zgrade koja će dobiti "smanjenu jednadžbu" kruga. Slika 3: obujam u ravnini kartezijanskoj Ako malo bolje pogledate, vidjet ćete da je na slici 4, slika prevedeni u neravnina i unutarnje opseg u kartezijanskom Plane, je Pravokutni trokut. Dakle, pomoću poznati Pitagorin poučak, imamo: Udaljenost od točke P u točki C je radijus kruga, tako zovemo segment r. Udaljenost od točke A do točke C se zove (x -), a udaljenost od točke do točke P naziva (y - b). Slika 4: trokut preveo opseg kartezijanskoj ravnini slici 3.