Mathematics
Show that the triangle formed by the points A(1, 3), B(3, -1) and C(-5, -5) is a right angled triangle (by using slopes).
Related Questions
Prove that the line through (0, 0) and (2, 3) is parallel to the line through (2, -2) and (6, 4).
Prove that the line through, (-2, 6) and (4, 8) is perpendicular to the line through (8, 12) and (4, 24).
Find the equation of the line through the point (-1, 3) and parallel to the line joining the points (0, -2) and (4, 5).
A(-1, 3), B(4, 2), C(3, -2) are the vertices of a triangle.
(i) Find the coordinates of the centroid G of the triangle.
(ii) Find the equation of the line through G and parallel to AC.