Question

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 ​

Answer 1

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