two concentric circles are of radii 13 cm and 5 cm the length of the chord of the longest circle which touches the smaller circle is.
a.24cm
b.12cm
c.18cm
d.48cm
i need solution with explanation
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hi mate
the length of longest chord of circle=diameter of circle
=2r
=2×13
=26
the distance between smaller circle and bigger circle=13-5=8
the length of longest chord touches the smaller circle=26-8=18
hope that it will help you
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