<P> Image showing orthographic views located relative to each other in accordance with first - angle projection . </P> <P> In third - angle projection, the object is conceptually located in quadrant III, i.e. it is positioned below and behind the viewing planes, the planes are transparent, and each view is pulled onto the plane closest to it . (Mnemonic: a "shark in a tank", esp. that is sunken into the floor .) Using the 6 - sided viewing box, each view of the object is projected opposite to the direction (sense) of sight, onto the (transparent) exterior walls of the box; that is, each view of the object is drawn on the same side of the box . The box is then unfolded to view all of its exterior walls . A simpler way to visualize this is to place the object in the bottom of a bowl . Sliding the object up the right edge of the bowl reveals the right side view . </P> <P> Here is the construction of third angle projections of the same object as above . Note that the individual views are the same, just arranged differently . </P> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> <Li> </Li> </Ul>

Draw the symbol of first and third angle projection