document.write( "Question 310928: Find the altitude of an equilateral triangle if one of its sides measures 12 cm \n" ); document.write( "
Algebra.Com's Answer #222384 by mollukutti(30)\"\" \"About 
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Basic fact:\r
\n" ); document.write( "\n" ); document.write( "The altitude of an equilateral triangle bisects the side on which it stands and forms right angled triangles with the remaining sides.\r
\n" ); document.write( "\n" ); document.write( "It would have been better if I could have drawn this here but as I cant I will try to explain it in words.\r
\n" ); document.write( "\n" ); document.write( "We have the length of each side = 12cm
\n" ); document.write( "Therefore the altitude bisects the side on which it stands into 2 equals each measuring 6cm
\n" ); document.write( "Hence one half of the triangle being a right angled triangle will have the following measurements\r
\n" ); document.write( "\n" ); document.write( "Hypotenus = side of the triangle = 12cm
\n" ); document.write( "Base= half of the side on which the altitude stands = 6 cm\r
\n" ); document.write( "\n" ); document.write( "Therefore as per the Pythagoras theorem\r
\n" ); document.write( "\n" ); document.write( "\"Altitude+%5E2+=+Hypotenuse%5E2+-+Base%5E2\"
\n" ); document.write( "= \"12%5E2+-+6%5E2\"
\n" ); document.write( "= \"144+-+36\"
\n" ); document.write( "= \"108\"\r
\n" ); document.write( "\n" ); document.write( "Therefor the Altitude = \"%28108%29%5E%281%2F2%29\"
\n" ); document.write( "= \"6%5E%281%2F3%29\"
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