Find the area of the rectangles whose adjacent sides are $3 k m a n d 4 k m$ .

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Solution

Adjacent sides of rectangle means its length and breadth.
We know that area of rectangle $= (L \times B)$
$= (3 \times 4) = 12 k m^{2} (s q . k m)$
Hence , area of rectangle $= 12 k m^{2}$ .

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