1. a sphere is sliced so that the cross section does not intersect the center of the sphere.
what is the shape of the cross section?
square
circle
rectangle
semicircle
2. what is the area of a cross section that is parallel to face abcd ?
3. what is the area of the two-dimensional cross section that is parallel to face abc ?
4. this rectangular prism is intersected by a plane that contains points b, d, h, and f.
what is the perimeter of the cross section?
(the first picture is for 2, the second is for 3, the third is for 4)