You need to read a copy of 2003 edition of America's priceless heritage: Cultural and fossil resources on public lands, but all copies are checked out from ISU Library. What are your choices in Google Books (Links to an external site.) for this title?

Hypothesis: volumes of both figures are equal.the volume of  figure 1 is: .the volume of figure 2 is: .since , you can conclude that and . so, .volumes of figures are equal only when an angle in the basis is right (then figures will be the same), in another cases volume of figure 1 is less than volume of figure 2.the hypothesis was not correct in all cases.

I’m not sure but i need to know too

The answer is e ; ; ; ;