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  4. If the arcs of same length in two circles subtend angles of 60° and 75° at their centers, then the ratio of their radii is

Q. If the arcs of same length in two circles subtend angles of and at their centers, then the ratio of their radii is

KCET KCET 2022 Report Error

Solution:

By using the formula
we conclude that
.

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5. If then

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