Find the area of the triangle whose vertices are `(1,-1),(2,4)` and `(-3,5)` .

Find the area of the triangle, whose vertices are (2,1), (4,5) and (6,3).

Find the area of that triangle whose vertices are (1,1),(-1,4)and(3,2).

Find the area of the triangle whose vertices are: (1,0),(6,0),(4,3)

Using determinants, find the area of the triangle whose vertices are (1, 4), (2, 3) and (-5, -3). Are the given points collinear?

Find the area of the triangle whose vertices are: (3,1),(4,3),(-5,4)

Find the area of the triangle whose vertices are (3,8), (-4,2) and (5, -1).

Find the area of the triangle whose vertices are (3, 8) , (-4, 2) and (5, 1) .

Using integration, find the area of the triangle ABC whose vertices are A(-1,1), B(0,5) and C(3,2) .

Find the area of that triangle whose vertices are (2,3),(-3,4)and(7,5).

Using integration, find the area of the triangle whose vertices are (1, 0), (4, 0) and (4, 4).