document.write( "Question 1203272: What is the perimeter of an equilateral triangle if it’s altitude measures 2√3cm \n" ); document.write( "
Algebra.Com's Answer #838704 by greenestamps(13203)\"\" \"About 
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\n" ); document.write( "You can use the \"well-known expression\" for the side length of an equilateral triangle in terms of the length of the altitude if you have a love of formulas.

\n" ); document.write( "For me that formula is litter for clouding the mind, since the problem is easily solved by simple analysis.

\n" ); document.write( "The altitude of an equilateral triangle divides the triangle into two 30-60-90 right triangles, in which the altitude is the long leg and the side length of the triangle is the hypotenuse.

\n" ); document.write( "Using the basics of the 30-60-90 right triangle, if the long leg has length \"2%2Asqrt%283%29\", then the short leg has length 2 and the hypotenuse has length 4.

\n" ); document.write( "ANSWER: The side length is 4, so the perimeter is 12.

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