We have given
4x - y + 5 = 0.....(i)
x + y - 5 = 0......(ii)
x - 4y + 5 = 0.....(iii)
By solving equations (i) and (iii), we get (-1, 1) and by solving (ii) and (iii), we get (3, 2)
\(\therefore\) Area of region bounded by the lines is given by:
\(=\frac{15}8+\frac{45}8=\frac{15}2\) sq units.