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OpenStudy (cayleelovesscott):
If the scale factor between two circles is 7a/9b what is the ratio of their areas?
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OpenStudy (campbell_st):
the ratio of the area is the square of the linear ratios...
OpenStudy (cayleelovesscott):
a) 49a/81b b) 49a(squared)/81b(squared) c) 81b(squared)/49a(squared) d) 81b/49a
OpenStudy (campbell_st):
so what happens when you square 7a what happens when you square 9b then you'll see the answer
OpenStudy (cayleelovesscott):
you get 49 and 81 but will it be b?
OpenStudy (amruta1202):
Chk this
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