document.write( "Question 796343: A triangle in the coordinate plane has verteces (1,2), (7,10), (26.2,4.4). Is this a right triangle? Why or why not? Find it's perimeter and it's area. Leg1=3.2cm Leg2=7.7cm Hypotenuse=8.3cm \n" ); document.write( "
Algebra.Com's Answer #481362 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Three non-collinear points can be grouped so as to form three pairs. Calculate the slopes of the lines that contain each pair of points. If any pair of such lines are perpendicualar, then the triangle is right. Otherwise not. Intersecting lines are parallel if and only if their slopes are negative reciprocals.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( "Egw to Beta kai to Sigma \n" ); document.write( "My calculator said it, I believe it, that settles it \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |