From a point P outside a circle, PAB is a secant and PT is a tangent to the circle, where A, B and T are points on the circle. If PT = 5 cm, PA = 4 cm and AB = x cm, then x is equal to:

From a point P outside a circle, PAB is a secant and PT is a tangent t

1.	From a point P outside a circle, PAB is a secant and PT is a tangent to the circle, where A, B and T are points on the circle. If PT = 5 cm, PA = 4 cm and AB = x cm, then x is equal to:
A.	2.25 cm
B.	2.45 cm
C.	2.75 cm
D.	1.75 cm
Answer» B. 2.45 cm

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From a point P outside a circle, PAB is a secant and PT is a tangent to the circle, where A, B and T are points on the circle. If PT = 5 cm, PA = 4 cm and AB = x cm, then x is equal to:

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