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Find the Area rectangle (21)(21)

 $\begin{array}{r} l = & 21 \\ w = & 21 \end{array}$

Step 1

The area of a rectangle is equal to the length times the width.

$(l e n g t h) \cdot (w i d t h)$

Step 2

Substitute the values of the length $l = 21$ and width $w = 21$ into the formula for the area of a rectangle.

$21 \cdot 21$

Step 3

Multiply $21$ by $21$ .

$441$

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