Maths

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A sheet of paper measuring 30cm by 20cm . A strip of Wide 4cm cut from it all around. Find the área of the remaining sheet and also the área of the cut strip

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    So wouldn't the length be reduced by 8 cm, and the width reduced by 8 cm ?

    mmmmhhhh? What is the new area vs the old area ?

    show me your work.

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