Circle described on focal length as diameter always touches the auxilliary circle.

Circle described on the focal chord as diameter touches the directrix.

prove that the circle drawn on any focal distance as diameter touches the auxiliary circle in an ellipse

Prove that the circle described on the focal chord as a diameter touches the directrix

Circle described on the focal chord as diameter touches the tangent at the vertex

In two concentric circles, a chord of length 8cm of the larger circle touches the smaller circle. If the radius of the larger circle is 5cm then find the radius of the smaller circle.

The radical center of the three circles described on the sides of a triangle as diameters is the orthocenter of a triangle.

Two concentric circles area of radii 8cm and 5cm. Find the length of the chord of the length circle which touches the smaller circle.

The locus of the centre of the circle described on any focal chord of the parabola y^(2)=4ax as the diameter is