UPSKILL MATH PLUS
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Learn moreA picture of length 21 \(cm\) and breadth 15 \(cm\) is painted on a chart, such that there is a margin of 1 \(cm\) along each of its sides. Find the total area of the margin.
[Note: The total area of the margin = Area of the chart - Area of the picture]
The total area of the margin is .
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