The acute angle between the line joining the points (2,1,-3) and (-3,1,7)and a line parallel to `(x-1)/3=y/4=(z+3)/5` through the point (-1,0,4) is

The acute angle between the line joining the points (1,1,7), (-3,4,7) and a line parallel to (1-x)/(-1)=(2y-7)/(6)=(z+3)/(0) through the point (-1,0,4) is

The acute angle between the line joining the points ,(1,1,7),(-3,4,7) and a line parallel to (1-x)/(-1)=(2y-7)/(6)=(z+3)/(0) through the point (-1,0,4) is

The angle between the line joining the points (1,-2) , (3,2) and the line x+2y -7 =0 is

Find the angle between the line joining the points (1,-2), (3,2) and the line x+2y-7=0

The angle between the line joining the points (1, -2), (3, 2) and the line x+2y-7=0 is

The angle between the line joining the points (1,-2) , (3,2) and the line x+2y -7 =0 is

Find the angle between the line joining the points (1,-2), (3,2) and the line x+2y-7=0