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A circle's equation can have either a general or standard form. In its general form, ax2 + by2 + cx + dy + e = 0, the circle's equation is more suitable for further calculations, while in its standard form, (x-h)^2 + (y-k)^2 = r^2, the equation contains easily identifiable graphing points like its center and radius. circle's equation can have either a general or standard form. In its general form, ax2 + by2 + cx + dy + e = 0, the circle's equation is more suitable for further calculations, while in its standard form, (x-h)^2 + (y-k)^2 = r^2, the equation contains easily identifiable graphing points like its center and radius.
TopThe central angle of a circle is the angle based at the circle's center. Here, we will discuss how to find the central angle of a circle. Given below are the steps for finding the central angle of a circle: Step 1: First of all, we will calculate the circumference by using the following formula: Circumference (C) = $2 \times \pi \times r$. Here, $\pi$ = 3.14 and ârâ is the radius, which is given in question. If diameter is given in diameter form, then we convert diameter into radius by dividing diameter by 2. Central angle of circle ($\theta$) = $\frac{\text{arc length} \times 360}{2 \times \pi \times r}$.