Question

Let the area ofa square is9cm.Sq what would be the new area if the side is reduce by 1cm

Answer 1

Answer:

=> Area = 9 cm²

=> a² = 9 cm²

=> a = √9 cm²

=> a = 3 cm

New Side = (3 - 1) = 2 cm

=> Area = a²

=> Area = (2 cm)²

=> Area = 4 cm²

Answer 2

Answer:

$area \: of \: square \: = \: s {}^{2} \\ 9 = s {}^{2} \\ s = 3cm \\ now \: side \: is \: reduced \: by \: 1cm \\ new \: area \: = 2 {}^{2} \\ = 4cm {}^{2}$

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