The area of a square is ##289## ##cm^2##. What is the side length?

Side length ##= 17## ##”cm” ##

Area of a square ##= s^2## where ##s =## side length
we have
##289 = s^2= s xx s##
##17 xx 17 = s xx s##
##17=s##
Hence side length ##= 17## ##”cm”##

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