" The polnts "(0,(8)/(3)),(1,3)" and "(82,30)" are "

The points (0,(8)/(3)),(1,3) and (82,30) are ventices of-

The points (0,(8)/(3)) , (1,3) and (82,30) are vertices of

The points (0,(8)/(3)),(1,3), and (82,30) are the vertices of (A) an obtuse-angled triangle (B) an acute-angled triangle (C) a right-angled triangle (D) none of these

The points (0, 8//3), (1, 3) and (82, 30) are vertices of :

The points (0,8/3),(1,3) and (82 ,30) are the vertices of (A) an obtuse-angled triangle (B) an acute-angled triangle (C) a right-angled triangle (D) none of these

The points (0,8/3),(1,3) and (82 ,30) are the vertices of (A) an obtuse-angled triangle (B) an acute-angled triangle (C) a right-angled triangle (D) none of these

The points (0,8/3),(1,3) , and (82 ,30) are the vertices of (A) an obtuse-angled triangle (B) an acute-angled triangle (C) a right-angled triangle (D) none of these

Find the value of alpha , if the points (5,1), (-2,-3) and (8,2 alpha) are collinear.