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11 February, 08:11

A 42" diameter table needs a tablecloth that hangs off the edge 8". What is the area of the tablecloth? Use 3.14 for π.

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Answers (2)
  1. 11 February, 11:30
    0
    The area of the table cloth is 2,640.74 iches
  2. 11 February, 12:07
    0
    The diameter of the table is 42 inches. The radius of the table is half of the diameter of the table, so the radius of the table is 42/2 = 21 inches.

    Add on 8 inches to the table radius to get: 21+8 = 29

    So the radius of the table cloth is r = 29

    Plug this into the area of a circle formula

    A = pi*r^2

    A = pi*29^2

    A = pi*841

    A = 841pi

    A = 841*3.14

    A = 2640.74

    The approximate area of the table cloth is 2640.74 square inches.
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