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    8 holes with a diameter of 12mm are drilled on a plate. if the holes are spaced 6mm apart and there must be 10mm on each end, how long a plate is needed?

    0  Views: 728 Answers: 1 Posted: 11 years ago

    1 Answer

    158mm, if you drill from one end to another....like a plank
    10mm x 2 for the ends  = 20mm
    6mm between 1 and 2, 2 and 3, 3 and 4, 4 and 5, 5 and 6, 6 and 7, 7 and 8  =  7 x 6 = 42mm 
    12mm x 8 holes = 96mm


     20
     42
     96 
    158 mm



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