The lengths of parallel chords which are on opposite sides of the Centre of a circle are 24 cm and 10 cm. If radius of the circle is 13 cm, then the distance
between these chords is
A) 12 cm B) 10 cm C) 17 cm D) 8 cm

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct