Find the area of the triangle with vertices at the points: (i) (-1, -8),  (-2, -3) and (3, 2)    (ii) (0, 0),  (6, 0) and (4, 3)

Explanation

We have to find area of triangle

(i) `(-1, -8),  (-2, -3) and (3, 2)`

As we know if `A(x_1, y_1),B(x_2, y_2)a n dC(x_3,y_3)`
are vertices of a triangle

Then the area of triangle are given as:

`Delta=1/2[(x_1,y_1, 1),(x_2,y_2, 1),(x_3,y_3 ,1)]`

`Delta=1/2[(-1,-8, 1),(-2,-3, 1),(3,2 ,1)]`

`Delta=1/2[-1(-5)-8(-5)+1(5)]`

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