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24 December, 19:37

The perimeter of an equilateral triangle is 21cm, find its length

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Answers (2)
  1. 24 December, 19:46
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    7cm is the length for each side of an equalateral triangle
  2. 24 December, 19:48
    0
    7 cm

    Step-by-step explanation:

    An equilateral triangle has all sides equal.

    To find the measure of the side, simply divide the perimeter by 3. This is because a triangle has 3 sides.

    21 : 3 = 7
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