Plz solve it................
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Let the radii of the two circles be and
where
Since the two circles touch internally, the distance between their centers is the difference of their radii, i.e.,
The sum of their areas is given as 130π cm², i.e.,
Now, consider (1).
Square both sides.
But from (2),
Then, in (3),
On adding (1) and (4), we get,
And on taking difference between (1) and (4), we get,
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