MONGE PROJECTION. ROTATION OF PLANE BY RIGHT ANGLE

26.11.2008

1.

Projections of segment AB are given. Determine length of segment AB and angle
between segment and horizontal projection plane.

2.

Construct projections of regular (equilateral) triangle ABC which belongs to plane



Plane



is perpendicular to vertical projection plane, angle between plane and

horizontal projection plane is 30

o

. Horizontal projection of one triangle

’s side is given

(AB), vertical projection of one vertex of triangle is given too (A).

3.

Construct projections of square ABCD which belongs to plane



Plane



is

perpendicular to horizontal projection plane. Projections of one side of square (AB)
are given. Determine angle between plane of square and vertical projection plane.

4.

Projections of line a and point A are given. Construct square ABCD which one vertex
is point A and two vertexes BC are on line a.