If two chords are perpendicular to each other and one chord is bisected, what do you know about the other chord?
a
it is the radius.
b
it is the diameter.
c
the chords are the same length.
d
the chords are the same line.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?