the diagram, tbd is a tangent to circles bapc and bnkm at b. akc is a chor off the larger circle and is also a tangent to the smaller circle at k. chords mn and bk intersect at f. pa is produced to d. bmc bna and brkp are straight lines. t 3 f 23 14 32 m 2 3 c k p prove that: mn ca (4) akmn is isosceles (3) n1 3 12 (4) nk ap dp is a tangent to the circle passing through points a,b and k (5)
