devinkennedy7078 devinkennedy7078

09-07-2018
Mathematics

contestada

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

Respuesta :

calculista calculista

18-07-2018

we know that

the ratio of their areas is equal to the scale factor squared

so

ratio of their areas=scale factor²------> [7a/9b]²------> 49a²/81b²

therefore

the answer is the option

49a2/81b2

Answer Link

nikolaychuknadea nikolaychuknadea

19-05-2022

Answer:

b

Step-by-step explanation:

Answer Link

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