A square with a 50 mm side has its corner A in the horizontal plane. Its diagonal AC is inclined at 30 degrees to the horizontal plane. The diagonal BD is inclined at 45 degrees to the vertical plane and parallel to the horizontal plane. The projections of the square are drawn with diagonal AC parallel to the horizontal plane and inclined at 30 degrees in the front view. Diagonal BD is inclined at 45 degrees to the vertical plane in both the front and top views.

1. Q12.6: A square ABCD of 50 mm side has its corner A in the H.P., its diagonal AC inclined at
30º to the H.P. and the diagonal BD inclined at 45º to the V.P. and parallel to the H.P. Draw its
projections.
Keep AC parallel to the H.P. Incline AC at 30º to the H.P.
& BD perpendicular to V.P. i.e. incline the edge view Incline BD at 45º to the V.P.
(considering inclination of (FV) at 30º to the HP
AC as inclination of the
plane)
c1’
b1’ d1’
b’
a’ d’ c’ 30º
X Y
45º 45º a1’
b1
b
a c a1 c1
d d1