**Answer**

(i) Area of a triangle is given by

Area of triangle = 1/2 {*x*_{1} (*y*_{2} - *y*_{3})+ *x*_{2} (*y*_{3} - *y*_{1})+ *x*_{3} (*y*_{1} - *y*_{2})}

Area of the given triangle = 1/2 [2 { 0- (-4)} + (-1) {(-4) - (3)} + 2 (3 - 0)]

= 1/2 {8 + 7 + 6}

= 21/2 square units.

(ii) Area of the given triangle = 1/2 [-5 { (-5)- (4)} + 3(2-(-1)) + 5{-1 - (-5)}]

= 1/2{35 + 9 + 20}

= 32 square units