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4 December, 09:45

Ms. Brown served her apple pie on a 21 inches radius dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit the dish? Use 22/7 as π. (only enter the final answer)

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Answers (2)
  1. 4 December, 10:12
    0
    365 radius is the answer
  2. 4 December, 10:15
    0
    132 inch

    Step-by-step explanation:

    To find the length around the dish we need to find the perimeter

    Perimeter of a circle = circumference = πd

    Radius = 21 in

    Diameter = 21x2 = 42 in

    Therefore perimeter

    = 22/7 x diameter

    = 22/7 x 42

    = 22 x 6

    = 132 in

    So, she will need a ribbon of length is 132 inches to tie around the dish
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