The formula for finding the area of a parallelogram is-
A=b*h Where A=Area b=base length h=height
A=10*4
A=40
A sorry I can't see the image
The question is asking which of the following does not have side that are parallel. So which of them have lines that would never touch if they were never ending lines.
Rectangular parallelepiped, right rectangular prism)
lwh
Prism
bh