Explanation:UNIT IV PROJECTION OF SECTIONED SOLIDS AND DEVELOPMENT OF SURFACESSECTION OF SOLIDS1.A cube of side 30 mm rests on the HP on its end with the vertical faces equally inclined to the VP. It is cut by a plane perpendicular to the VP and inclined at 30° to HP meeting the axis at 25 mm above the base. Draw its FRONT view, sectional top view andtrue shape of the section. 2.A pentagonal prism of base side 40mm and height 85mm rests on the H.P such that two of its base edges are equally inclined to VP. It is cut by a plane perpendicular to the V.P and inclined 450to the H.P. The cutting plane meets the axis at 30mm from the top. Draw the front view, sectional top view and true shape of the section. 3.A hexagonal prism of side of base 20 mm and length 60 mm rests on HP with its axis being vertical  and  one  edge  of  its  base  inclined  at  15°  to  VP.  The  solid  is  cut  by  a  plane perpendicular to VP and inclined at 40° to HP and bisecting the axis of the prism. Draw the projections of the prism and true shape of the section. 4.A cylinder of diameter 50MM and height 60mm rests on its base on H.P. It is cut by aplane perpendicular  to  V.P.  and  inclined  at  450to  H.P.  The  cutting  plane  meets  the  axis  at  a distance of 15mm from the top. Draw the sectional plan and true shape of the section. 5.A right circular cone of base diameter 50mm and axis length 60mm rests on its base on the H.P. It is cut by a plane perpendicular to the H.P and inclined at 600to the VP. The shortest distance between the cutting plane and the top view of the axis is 8mm. Draw the top view, sectional front view and the true shape of the section.