document.write( "Question 980905: The factory also makes a triangular rug. It is an isosceles triangle f feet wide
\n" ); document.write( "with a perpendicular height of 1 foot 6 inches. How much braid will Gloria
\n" ); document.write( "need to cut to go all the way around the rug?
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Algebra.Com's Answer #601970 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "First consider the perpendicular
\n" ); document.write( "height divides the isosceles into
\n" ); document.write( "two right angled triangles back
\n" ); document.write( "to back.
\n" ); document.write( "We are given the height = 1.5 ft
\n" ); document.write( "We are given the base = f so we
\n" ); document.write( "divide it by 2 and this gives
\n" ); document.write( "the size of the base of the right
\n" ); document.write( "angled triangle f/2
\n" ); document.write( "To find the hypotenuse we must
\n" ); document.write( "sqrt (f/2)^2 + (1.5)^2
\n" ); document.write( "= sqrt f^2/4 + 2.25
\n" ); document.write( "So the braid to go round the rug
\n" ); document.write( "will == 2(sqrt(f^2/4 + 2.25)) + f
\n" ); document.write( "Hope this helps:-)
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