The perimeter of an equilateral triangle is 21cm, find its length
2 answers:
Answer:
7cm is the length for each side of an equalateral triangle
Answer:
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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