document.write( "Question 482087: the smallest angle of an isosceles triangle is one-fifth of one of the equal angles. the shortest side is 20m. what is the perimeter of the triangle? \n" ); document.write( "
Algebra.Com's Answer #330784 by cleomenius(959)\"\" \"About 
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First, I found the degrees in the smallest angle.
\n" ); document.write( "5x + 5x + x = 180
\n" ); document.write( "x = 16.36 degrees, the smaller angle
\n" ); document.write( "So, the larger two angles are 81.8 degrees. These are the base angles.
\n" ); document.write( "By the law of Sins, 20/sin 16.36 = x/sin 81.8; the side came out to 70.14 cm.
\n" ); document.write( "2(70.14) + 20 = 160.28 cm. which is the perimeter.
\n" ); document.write( "Cleomenius.
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