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  • Brainly User
2015-09-22T12:15:13+08:00

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Since the triangle is equilateral, meaning it has equal sides of x, add all the side to get the perimeter.

Perimeter = 30 units
Side = x units

x + x + x = 30
3x = 30

3x/3 = 30/3

x = 10 units

Therefore, each side has a length of 10 units.
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