Mathematics, 15.07.2019 10:30 supermansabeast

If the scale factor between two circles is 7a/9b what is the ratio of their areas? a. 49a/81bb. 49a2/81b2 c. 81b2/49a2d. 81b/49a

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If the scale factor between two circles is 7a/9b what is the ratio of their areas? a. 49a/81bb. 49...