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      ·  7 years ago (edited)

    a) 9cm
    b) guess that makes (13.5-9)^2 = 20.25 * 3 = 60.75 cm^2

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      1 vote
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        ·  7 years ago 

      👍🏼

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        1 vote
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          ·  7 years ago 

        a. 9cm

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