Circles
Telangana Open School (TOSS) · Class 12 · Mathematics
All formulas from Circles in Telangana Open School (TOSS) Class 12 Mathematics. Key equations, constants, and identities for board exam preparation.
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Formulas
Standard Equation of a Circle
(x - h)^2 + (y - k)^2 = r^2
x^2 + y^2 = r^2
General Equation of a Circle
x^2 + y^2 + 2gx + 2fy + c = 0
Diameter Form of Circle
(x - x₁)(x - x₂) + (y - y₁)(y - y₂) = 0
Parametric Form of Circle
x = h + r cosθ, y = k + r sinθ
x = r cosθ, y = r sinθ
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