The angle between the plane `3x+4y=0` and the line `x^2+y^2=0` is (A) `0^0` (B) `30^0` (C) `60^0` (D) `90^0`

The angle between the plane 3x+4y=0 and z-axis is (A) 0^0 (B) 30^0 (C) 60^0 (D) 90^0

The angle between the lines 2x- y +3=0 and x+ 2y +3=0 is

Find the angle between the planes 2x+y+z-1=0 and 3x+y+2z-2=0 ,

The angle between a line x=1,y=2 and y+1=0, z=0 is (A) 0^0 (B) 30^0 (C) 60^0 (D) 90^0

The angle between the straight lines 2x-y+3=0 and x+2y+3=0 is-

Find the angle between the lines x-2y+3=0 and 3x+y-1=0 .

Find the angle between the lines x+3y-8=0 and 2x-3y+6=0 .

Find the angle between the plane: 7x+5y+6z+30=0 and 3x-y-10z+4=0

If theta is the angel between the planes 2x-y+z-1=0 and x-2y+z+2=0 then costheta= (A) 2/3 (B) 3/4 (C) 4/5 (D) 5/6

In Figure, the value of y is (a) 20^0 (b) 30^0 (c) 45^0 (d) 60^0