Question

Two concentric circles are of radii 13 cm and 5 cm. The length of the chord of
the longer circle which touches the smaller circle is
a] 24 cm
b] 12 cm
c] 18 cm
d) 48 cm
​

Answer 1

answer

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Answer 2

Step-by-step explanation:

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