When the axis of the solid is parallel to both HP and VP the view which reveals the true shape of the base is

The projection of solids can include: Axis inclined to one plane by change of position method Section of solids in simple vertical position True shape of section  The shape of a solid is described orthographically by drawing its two orthographic projections, usually, on the two principal planes of projection, i., HP and VP.  The projection of a solid on the plane to which its axis is perpendicular will show the true shape and size of its base. For example, when the axis is perpendicular to the ground, i.e. to the H.P., the top view should be drawn first and the front view projected from... Show more

The projection of solids can include:
Axis inclined to one plane by change of position method
Section of solids in simple vertical position
True shape of section 

The shape of a solid is described orthographically by drawing its two orthographic projections, usually, on the two principal planes of projection, i., HP and VP. 
The projection of a solid on the plane to which its axis is perpendicular will show the true shape and size of its base. For example, when the axis is perpendicular to the ground, i.e. to the H.P., the top view should be drawn first and the front view projected from it. 
A section will show its true shape when viewed in normal direction. To find the true shape of a section, it must be projected on a plane parallel to the section plane. 

Here are some examples of cross sections:
Earth: A cross-section of Earth illustrates the structure of the planet's interior.
Midbrain: A cross-section of the midbrain at the level of the superior colliculus.
Annual rings: A Pinus taeda cross-section shows annual rings. 

Related Test: Engineering Graphics Practice Test: Projections of Plane

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