jentest
jentest jentest
  • 22-07-2018
  • Mathematics
contestada

a square tile has an area of 324 square inches. what is the perimeter of the square tile in inches?

Respuesta :

gmany
gmany gmany
  • 22-07-2018

The formula of an area of a square: [tex]A=a^2[/tex]


a - side


We have: [tex]A=324\ in^2[/tex]


substitute:


[tex]a^2=324\to a=\sqrt{324} \to a=18\ in[/tex]


The fromula of a perimeter of a square is: [tex]P=4a[/tex]


substitute:


[tex]P=4\cdot18=72\ in^2[/tex]

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