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Perimeter Missing Side Lengths

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    perimeter
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  • Find the perimeter of a triangle with sides 11, 9, and 12.
    32
  •  10
  • Find the perimeter of a triangle with sides 8, 14, and 12.
    34
  •  10
  • What's the perimeter of this shape?
    10
  •  10
  • This is a regular pentagon. If the perimeter is 20, how long is each side?
    4
  •  10
  • A nonagon has a side length of 3. What is its perimeter?
    27
  •  10
  • What is the perimeter of a square with side lengths of 6?
    24
  •  10
  • A rectangle has one long side length 13, and one short side length 7. What is its perimeter?
    40
  •  15
  • What is the missing side length?
    9
  •  15
  • What is the perimeter of this shape?
    44
  •  15
  • What is the missing length?
    2
  •  15
  • This triangle has a perimeter of 27. What is the missing side?
    6
  •  15
  • What is the length of the missing side?
    6
  •  15
  • This shape has a perimeter of 50. What is the length of the missing side?
    6
  •  15
  • What are the missing side lengths?
    2 and 2
  •  15