QUESTION 1 (0, 20, 40) (20, 20, 40) This model illustrates the STL file of a rectangular parallelepiped. All vertices are shown as (x, y, z) coordinates. Normal vectors are omitted. For this model: (20, 0, 40) (0, 0, 40) a) Calculate all trigger points for slices z = 4 and z= 22. Present them in the correct order to define the outer closed contour of each slice. b) Translate the block 5 units in Y. Rotate the block 20 about Z. Scale the part by a factor of 0.8. Where will the following original vertices be located after all operations? (20,0,0) and (0,20,40) Use concatenation! V20, 20,0 (0, 20, 0) (20, 0, 0) (0,0,0)