" 2.Find the angles of the rrinngle "A(-4,2),B(12,-2)" and "C(8,6)" ."

If the co-ordinates of the vertices A,B,C of the triangle ABC are (-4, 2) , (12,-2) and (8,6) respectively, then angle B=

If the co-ordinates of the vertices A,B,C of the triangle ABC are (-4, 2) , (12,-2) and (8,6) respectively, then angle B=

If the coordinates of the vertices A,B,C of the ABC be (-4,2),(12,-2) and (8,6) respectively,then /_B=

If the triangle with vertices A (12,8) , B (-2,k) and C (6,0) is right - angled at C, find k.

If triangleABC is right angled at B , where A(5,6,4), B(4,4,1) and C(8,2,x) , then find the value of x.

Find the square root of : 4 a ^(2) + 9b ^(2) + c ^(2) - 12 ab + 6 bc - 4 ac

Find the (a) union (b) intersection of the following pair of sets : A = {2,4,6,8}, B= {6, 8, 10, 12}.

A(1,2), B(6,4)' and 'C(8,9)' are the vertices of the parallelogram 'ABCD'. Find the co-ordinates of 'D'.

Consider the sets A = {1,2,4,5},B ={2,4,6,8} and C = {4,6,8,9} Find B cap C . Hence, find A cup(B capC)