Question

in two concentric circles, a chord AB of the bigger circle touches the smaller circle at the point P . if the radii of two circles are 10 cm and 6 CM, then what is the lenght of AB in cm ?
a) 24
b) 8
c) 16
b) 20

Answer 1

answer is 16 that is option c

Answer 2

(C) 16 using Pythagoras theorem then finding the length of AD.since AD=2AC, therefore AC=16 cm