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27 June, 13:46

Joaquin has created a small treasure map that is in the shape of a square. He decides to make a larger version of the map, and on this new map he increases each side by 6 inches. The area of this larger version of the map is 121 square inches. What are the dimensions of his original, smaller map? 5 inches by 5 inches 8 inches by 8 inches 11 inches by 11 inches 17 inches by 17 inches

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  1. 27 June, 17:12
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    A - side of small map

    a+6 - side of larger map

    (a+6) ² - area of larger map

    (a+6) ² = 121

    (a+6) ² = 11² |√ ( ...)

    a+6 = 11 |-6

    a+6-6 = 11-6

    a = 5

    Answer A. 5 inches by 5 inches
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