Answer :

__The figure is given below:__

CD = 20cm = length of chord

AE = 24cm = distance of chord from centre

From Theorem: A circle with radius r and a chord of length l which is at distance d from the centre, follows the equation,

From here we get,

r^{2} = 100 + 576 = 676

r = 26cm

Hence radius is 26cm.

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