Question

find the area of a square whose perimeter is 120 m
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Answer 1

$perimeter \: of \: square \: = 4a \\ 4 \times a = 120 \\ a = \frac{120}{4} = 30 \\ 4 \times 30 = 120$

$here \: a \: is \: 30 \: so \\ area \: of \: sq \: = {a}^{2} \\ {30}^{2} = 900 \:$

Hope it helpss !!!!!

Answer 2

Answer:

perimeter of square = 4a

4 × a = 120

=30

4×30=120

\begin{gathered}here \: a \: is \: 30 \: so \\ area \: of \: sq \: = {a}^{2} \\ {30}^{2} = 900 \: \end{gathered}

hereais30so

areaofsq=a

2

30

2

=900