29. Find the area of the triangle formed by the straight lines whoes equations x+2y-5=0, 2x+y-7=0 and x-y+1=0 without determining the coordinates of the vertices of the triangle.also compute the tangent of the interior angles of the triangle and hence comment upon the nature of triangle.

29. Find the area of the triangle formed by the straight lines whoes e

1.	29. Find the area of the triangle formed by the straight lines whoes equations x+2y-5=0, 2x+y-7=0 and x-y+1=0 without determining the coordinates of the vertices of the triangle.also compute the tangent of the interior angles of the triangle and hence comment upon the nature of triangle.
Answer» 29. Find the area of the triangle formed by the straight lines whoes equations x+2y-5=0, 2x+y-7=0 and x-y+1=0 without determining the coordinates of the vertices of the triangle.also compute the tangent of the interior angles of the triangle and hence comment upon the nature of triangle.