'O' is the centre of a circle of radius 5cm.T is a point such that OT=13 and OT intersects the circle at E .if AB is the tangent to the circle at E ,PT,QT are tangents,then find the length of AB.
neerjabinu:
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OT = 13 cm
OE =5cm
AB =√ (13)²-(5)²
=√169-25
=√144
=12cm
OE =5cm
AB =√ (13)²-(5)²
=√169-25
=√144
=12cm
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