. In a circle of radius 17 cm, two parallel chords are drawn on opposite side of a diameter. The distance between the chords is 23 cm. If the length of one chord is 16 cm, then the length of the other.

AB and CD are two parallel chords of a circle with centre O such that AB = 6 cm and CD = 12 cm.The chords are on the same side of the centre and the distance between them is 3 cm. The radius of the circle is

.Two equal circles of radius r intersect such that each passes through the centre of the other. The length of the common chord of the circle is

. In a circle with centre O, AB and CD are two diameters perpendicular to each other. The length of chord AC is

30cm

3√5 cm

√3r

AB/√2