Circles

Common Tangent to Two Circles – Direct & Transverse

Here you will learn common tangent to two circles i.e direct and transverse common tangents and orthogonal circles condition. Let’s begin – Common Tangent to Two Circles Let two circles \(C_1\) and \(C_2\) and radii, \(r_1\) and \(r_2\) and \(C_1\)\(C_2\) is the distance between their centres then : (a)  Both circles will touch : (i)  …

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Diameter Form of Circle – Parametric Equation & Example

Diameter Form of Circle The equation of the circle drawn on the straight line joining two points \((x_1, y_1)\) and \((x_2, y_2)\) is (\(x-x_1\))(\(x-x_2\)) + (\(y-y_1\))(\(y-y_2\)) = 0. This is known as diameter form of circle. where \((x_1, y_1)\) and \((x_2, y_2)\) are coordinates of two ends of diameter of circle. Note – If the …

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