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The ratio of the radii of two circles is 1:3. Then, the ratio of their areas is

(a)

1:3

(b)

1:6

(c)

1:9

(d)

None of these



Question ID - 50563 | SaraNextGen Top Answer

The ratio of the radii of two circles is 1:3. Then, the ratio of their areas is

(a)

1:3

(b)

1:6

(c)

1:9

(d)

None of these

1 Answer
127 votes
Answer Key / Explanation : (c) -

Let the radii of the two circles be  and

 

Then, req. ratio =

127 votes


127