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What is the side of a square having perimeter as $72 c m$ ?

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$9 c m$

$18 c m$

$24 c m$

$36 c m$

answer is A.

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Detailed Solution

The perimeter of a square is found by the following expression:

$P = 4 \times s i d e$

Now, we are given the perimeter of square as $72 c m$

Substituting this in the expression, we get:

$72 = 4 \times s i d e$

Simplifying which, we get:

$s i d e = 18 c m$

Thus, the required side of the square is found to be option (A): $18 c m$ .

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