Find the area of the rectangle whose sides are:
$12 m$ and $21 m$ .

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Solution

Area of rectangle = $l e n g t h \times b r e a d t h$
lets assume,
length $(L) = 12 m$
breadth $(B) = 21 m$
$∴$ Area of rectangle $= L \times B$
$= 12 \times 21$
= $252$ m square

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