Question

28.
A tangent segment PT touching a circle in T and
a secant PAB are as shown in the figure below.
If TP = 12 and PA = 4, then AB=?

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Answer 1

Answer:

x(x+5)=36.........x^2+5x-36=0.......x^2+9x-4x-36=0.....x(x+9)-4(x+9)=0....x=4 is the answer