Find the are of the triangles the coordinate of whose angular points are
`(-3,-30^(@)), (5,150^(@)), and (7,210^(@))`

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

The equation of the sides of a triangle, the coordinates of whose angular points are: (3,5),(1,2) and (-7,4) .

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 coordinates of the centre of the circle inscribed in a triangle whose angular points are (-36,7),(20,7) and (0,-8)

Find the polar coordinates of the points whose cartesian coordinates are (-3, 4)

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 polar coordinates of the points whose cartesian coordinates are (-2, -2)

Find the cartesian coordinates of the points whose polar coordinates are (5 sqrt(2), (pi)/(4))