alvinisapro alvinisapro

24-02-2020
Mathematics

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The area of a square is 81m square.what is the perimeter of the square?how do you know

Respuesta :

aryasus30 aryasus30

24-02-2020

Answer:

36m

Step-by-step explanation:

If the area of a square is 81 m

A=81m

but we know that A=l² so l=radA

l=9m

p=4l

finally p=4•9=36m

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