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    Question

    Find the distance between points A(2, 3) and B(7, 8).

    A 5 cm Correct Answer Incorrect Answer
    B 5тИЪ2 cm Correct Answer Incorrect Answer
    C 7 cm Correct Answer Incorrect Answer
    D 8 cm Correct Answer Incorrect Answer

    Solution

    Distance = тИЪ((x2 - x1)┬▓ + (y2 - y1)┬▓) = тИЪ((7 - 2)┬▓ + (8 - 3)┬▓) = тИЪ(25 + 25) = тИЪ50 = 5тИЪ2 cm.

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