The ratio of the radii of two circles is 1:3. Then, the ratio of their areas is |
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(a) |
1:3 |
(b) |
1:6 |
(c) |
1:9 |
(d) |
None of these |

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

Let the radii of the two circles be and

Then, req. ratio =

127 votes

127