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Kay [80]
3 years ago
11

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

Mathematics
2 answers:
Margarita [4]3 years ago
7 0

Answer:

7cm is the length for each side of an equalateral triangle

Talja [164]3 years ago
3 0

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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