document.write( "Question 256042: hiya
\n" ); document.write( "I wanted you to tell me the proof that altitudes on a triangle are congruent using Ceva's theorm. But i nned to know the proof using trigonmetry.\r
\n" ); document.write( "\n" ); document.write( "the diagram i was given was of a triangle ABC and a line that is perpendiular to the line BC (at point A')and hits vertex A. also i have an angle at A*B*A' 'b'.\r
\n" ); document.write( "\n" ); document.write( "Could you help me please? thanQ for looking
\n" ); document.write( "

Algebra.Com's Answer #188215 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "I don't think you meant 'congruent.' I think you meant 'concurrent.' See the Wikipedia article on Ceva's Theorem:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "http://en.wikipedia.org/wiki/Ceva's_theorem\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );