PQ is a chord of length 8 cm of a circle of radius 5 cm. The tangents at P and Q intersect at a point T (see Fig. 10.10). Find the length TP.

Find the length of the arc of a circle of radius 5 cm subtending an angle measure 45^@ .

A chord of length 16 cm is drawn in a circle of radius 10 cm. Find the distance of the chord from the of the circle.

A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q so that OQ = 12 cm. Length PQ is:

In a circle of radius 5 cm, AB and AC are two chords, such that AB = AC = 6 cm. Find the length of the chord BC.

Let PQ be a focal chord of the parabola y^(2)=4ax . The tangents to the parabola at P and Q meet at point lying on the line y=2x+a,alt0 . The length of chord PQ is