Question

Two circles touch internally. The sum of their areas is
170 mt cm2 and the distance between their centres is 4 cm. Find
the radii of the circles.
[Hint. Let the radii of the given circles be R and (R + 4) cm
respectively. Then
Te (R + 4) + TR2 = 1701 => (R+ 4) + R2 = 170
R+4R - 77 = 0 => (R + 11) (R-7) = 0​

Answer 1

Answer:

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