Which of the following formulae can be used to find the area and the perimeter of a square? (Given Side length = 'a')

a², 4a

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a², 2a

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2a², 4a

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2a², 2a

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Solution

The correct option is A
a², 4a

$A r e a o f s q u a r e =$ $s i d e^{2}$ = $a^{2}$

$P e r i m e t e r o f s q u a r e = 4 \times s i d e = 4 a$

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4

225 s q . m

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