Question

I need to find AB can someone please help me ASAP :(

Answer 1

AB = 11

Explanation:

Using the external secant property,

CB*CA = CD*CL (=CT^2 if T is tangent throught C)

substitute values,

7*(7+2x+3) = 9*(9+x+1)

Expand and simplify

70+14x = 90 + 9x

5x = 20

x = 4

=>

AB = 2x+3 = 2(4)+3 = 8+2 = 11