document.write( "Question 706874: A square has side length s, while an equilateral triangle has length s+1. Write and solve a system of linear equalities to determine the length of the side at which the perimeters of the triangle and the rectangle would be equal. \n" ); document.write( "
Algebra.Com's Answer #435416 by Gogonati(855)\"\" \"About 
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Let's the perimeter of square or triangle is p. the system will be:\r
\n" ); document.write( "\n" ); document.write( "\"system+%28p=4s%2C+p=3%28s%2B1%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"s=p%2F4\", substitute and get: \r
\n" ); document.write( "\n" ); document.write( "\"+p=3%28p%2F4%29%2B3\" => \"4p-3p=12\" => \"p=12\"\r
\n" ); document.write( "\n" ); document.write( "The perimeter of square or equilateral triangle is 12cm and the side of square is 3 cm while the side of equilateral triangle is 4cm.
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