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Today, 14:54

The perimeter of a triangle is 25 feet. What is the length of the unknown side?

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  1. Today, 18:08
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    Perimeter of triangle=sum of all sides x = unknown sides

    Step-by-step explanation:

    25ft = x + 5.2ft + 8ft

    25ft = x + 13.2ft

    subtract 13.2 from both sides

    11.8 feet = x

    unknown side is 11.8 feet
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