what is the distance between two parallel chords of length 32 cm and 24 cm in a circle of radius 20 cm ?
Pick:  A) 1 or 7  B) 3 or 21  C) 4 or 28  D) 2 or 14  E) 2 or 15
since the chord length=2sqrrt(r^2-d^2)   chord length=32,r=20 then we get d=12   chord length=24,r=20 then we get d=16   then we add/subtract we get 4 or 28   ANSWER:4 or 28
<result>C</result>
what is the distance between two parallel chords of length 32 cm and 24 cm in a circle of radius 20 cm ?