A circle with Centre O and radius of 5 cm if TP and tq are tangents to it and OT is 13 cm ab is a common tangent to circle intersecting the circle at E and the tangents at A and B find the length of AB
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AB2 =AC2 +BC2
AB2=(5)2-(13)2
AB2=25 - 169
AB2= 144
AB= 12
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