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OlgaM077 [116]
3 years ago
8

5. The perimeter of the shown

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
8 0
21 divided by 3= 7
&;&;&;’f
Nastasia [14]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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