In a circle, two parallel chords of lengths 16 cm and 24 cm are 20 cm apart. Then the radius of the circle is
The surface area of a cuboid is 1372cm2. If the ratio length : breadth : height is 4:2:1, then its length (in cm) is
AB and CD are two parallel chords of a circle of length 24 cm and 10 cm respectively and lie on the same side of its centre O. If the distance between the
chords is 7 cm, find the radius of the circle (in cm).