In the figure, the line segment ST is tangent to two circles at S and T. O and Q are the centres of the circles wih OS = 5cm. QT = 2cm and OR = 14cm. Find ST
a
7 \(\sqrt{3}\)cm
b
12.9cm
c
\(\sqrt{87}\)cm
d
7cm
Explanation
Correct Option
bVideo Explanation
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