graphics engineering?

Question

http://img87.imageshack.us/img87/7518/gtpahcis23wr5.jpg

Hey could someone help me out with these graphical representations. I missed one of the classes and im finding it really difficult. thanks

Answer 1

Hi, this is not difficult as it seen in first sight. you have to relax and solve it logically. I see that in some cases the hidden lines are not drawn as dashed lines, but it is not necessary.
I'll demonstrate it for the top left image and let you continue the others:
assume you have standing prism with the cross section of the top view. if you look at it from front view you need to cut it according to this view with strate roof and small square missing at the floor (not the hidden lines are missing here). now you have some kind of box with cuboid missing in the front view and cuboid and two pyramids missing in the top view. if you look at the side view you see triangle this means you have to cut what left with the diagonal (and again the inside hidden line is missing here).