PLEASE ANSWER QUICK!
THIS IS A MULTI-PART QUESTION, NOT AN 'A B C OR D' QUESTION!!
A slice is made parallel to the base of a square pyramid.
a) What is the shape of the resulting two-dimensional cross-section?
A slice is made perpendicular to the base of a right rectangular pyramid through the vertex.
b) What is the shape of the resulting two-dimensional cross-section?
c) What is the area of the resulting two-dimensional cross section?