Question

Two circles are tangent internally at P, and a chord, AB, of the larger circle is tangent to the smaller circle at C (Fig. 4-20). PB
andPA cutthe smaller circle at Eand D, respectively. a) If AB = 15,
while PE = 2 and PD = 3, find AC.
b)Express AC in terms of AB, PE, and PD

Answer 1

...anyone...?

Answer 2

give up, will leave it there incase someone comes along and solves "good will hunting" style... ;P