document.write( "Question 265201: Draw and label a diagram. list, in terms of the diagram, what is given and what is to be proved. then write a proof.
\n" ); document.write( "if the vertex angle of one isosceles triangle is congruent to the vertex angle of another isosceles triangle, then the triangles are similar.
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Algebra.Com's Answer #195150 by richwmiller(17219)\"\" \"About 
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If the third angle (vertex of an isosceles triangle is congruent to the third angle of another isosceles triangle then the two triangles are similar.
\n" ); document.write( "the other two are equal. there fore the sum is going to be 180\r
\n" ); document.write( "\n" ); document.write( "if the 3rd angle is x then the other two angles are (180-x)/2 each
\n" ); document.write( "so all three angles are the same so the triangles are similar since similar triangles have the same angles\r
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