Find the areas of the triangles the coordinates of whose angular points are respectively.
(a,b + c), (a, b - c) and (-a, c)

Find the equations to the sides of the triangles of the coordinates of whose angular points are respectively: (1,4),(2,-3) and (-1,-2) .

Find the areas of the triangles the coordinates of whose angular points are: (-a,(pi)/(6))(a,(pi)/(2)), and (-2a,-(2 pi)/(3))

Using the method of integration find the area of the triangle ABC, coordinates of whose vertices are A(2,0),B(4,5) and C(6,3) .

Find the area of the triangle whose vertices A, B, C are respectively, (3, 4), (-4, 3) and (8, 6) .

Find the area of the triangle whose vertices are (a,b+c),(a,b-c) and (-a,c) ?

Find the equations to the altitudes of the triangle whose angular points are A(2,-2),B(1,1) and C(-1,0)

Find the vector area of a triangle whose vertices are a,b, and c