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OpenStudy (7thgrader):
What is the perimeter of a triangle with the given side lengths? s1 = x + 4 cm s2 = 3x + 1 cm s3 = 7x + 3 cm P = x + cm
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OpenStudy (7thgrader):
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Directrix (directrix):
Add these three side lengths: x + 4 + 3x + 1 + 7x + 3 = ? Post what you get, okay? @7thGrader
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