document.write( "Question 964686: An isosceles triangle has a vertex angle of 80 degrees and a base of 14 cm. Find the perimeter of the triangle. Draw a Diagram \n" ); document.write( "

Algebra.Com's Answer #589545 by Fombitz(32388) $\"\"$ $\"About$

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Find the other angle, X,
\n" ); document.write( " $\"X%2BX%2B80=180\"$
\n" ); document.write( " $\"2X=100\"$
\n" ); document.write( " $\"X=50\"$
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\n" ); document.write( "Find the other side, Y,
\n" ); document.write( " $\"sin%2880%2F2%29=%2814%2F2%29%2FY\"$
\n" ); document.write( " $\"Y=7%2Fsin%2840%29\"$
\n" ); document.write( " $\"Y=10.89\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"P=2Y%2B14\"$
\n" ); document.write( " $\"P=35.78\"$ $\"cm\"$
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