Chord 2

Point A has a distance of 13 cm from the center of the circle with a radius r = 5 cm. Calculate the length of the chord connecting the points T1 and T2 of contact of tangents led from point A to the circle.

Correct answer:

x =  9.2308 cm

Step-by-step explanation:

a=5 cm c=13 cm b2=c2a2  b=c2a2=13252=12 cm S1=S2 2ab=2cv ab=cv  v=ca b=135 12=13604.6154 cm  x=2 v=2 4.6154=13120 cm=9.2308 cm



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