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Two circles of radii 5 cm and 3 cm are concentric. Calculate the length of a chord of the outer circle which touches the inner.

Selina Solutions Concise Class 10 Maths Chapter 18 ex. 18(A) - 5

Solution:

Given,

   

In right triangle

   

, we have

   

   

   

So,

   

As we know,

   

is perpendicular to

   

bisects chord

   

Thus,