fiercelymaddie fiercelymaddie
  • 01-08-2014
  • Mathematics
Answered

Perimeter of a square with an area of 81cm2



Answer :

MattD
MattD MattD
  • 01-08-2014
[tex]a^2=81|\sqrt{81}[/tex]
a=9
Perimeter:
4*a=4*9=36cm
Answer Link
Аноним Аноним
  • 01-08-2014
If it's a square, both sides are equal, and both sides must times together to get 81 :)
The square root of 81 is 9.
9 times four ( for the four sides) gives you 37cm^2 ;)
Answer Link

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