document.write( "Question 457166: can you explain to me why the exterior angle of a triangle equals the sum of two interior opposite angles thanks alot \n" ); document.write( "
| Algebra.Com's Answer #313663 by Alan3354(69443)     You can put this solution on YOUR website! The sum of angles in a triangle = 180 degs \n" ); document.write( "The sum of any 2 angles = 180 - the 3rd angle \n" ); document.write( "-------- \n" ); document.write( "The exterior angle also = 180 - the interior angle \n" ); document.write( "There's no \"why\", it just does \n" ); document.write( " |