What is the perimeter of an equilateral triangle whose side is 8.5 cm?

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• A 24 cm
• B 8.5 cm
• C 25.5 cm
• D 72.25 cm

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Answer: C. 25.5 cm

8.5 cm + 8.5 cm + 8.5 cm = 25.5 cm
Or simply: 3 x 8.5 cm = 25.5 cm

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