Tangents at the end of focal chord are perpendicular to each other and meet at directrix

The tangents at the ends of a focal chord of a parabola y^(2)=4ax intersect on the directrix at an angle of

To draw two tangents to a circle which are perpendicular to each other, the perpendiculars are to be drawn at the ends of two radii which are inclined at an angle of……..

Can we draw two tangents perpendicular to each other on a circle ?

The tangent and normals at the ends of a focal chord of a parabola meet in P and Q respectively. Then slope of PQ is : (A) 1 (B) 0 (C) undefined (D) sqrt(3)

Prove that the tangent and the radius through the point of contact of a circle are perpendicular to each other.

The focal chord of the parabola perpendicular to its axis is called as

The focal chord of the parabola perpendicular to its axis is called as

Two chord PQ and PR of the circle are perpendicular to each other. If the radius of the circle be r and then find the length of the chord QR.

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