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Step-by-step explanation:
i) 9.
ii) 8.
Hope it helps you.
Answered by
0
Answer:
It would be 9cm
Step-by-step explanation:
this is because area of a square has formula:a^2(where a is the side is of a square)
therefore
81=a^2
a=√81
a=±9
as side can't be negative
therefore side is 9 cm
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