Quantitative Aptitude Geometry Circles, Chords and Tangents

PA and PB are tangents from an external point P to a circle with centre O. If the radius of the circle is 5 cm and PA is perpendicular to PB, then find the length of the chord AB.

1
\(5\sqrt{2}\) cm
2
6 cm
3
5 cm
4
\(\sqrt[5]{3}\) cm

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