Athree dimensional object was sliced parallel to its base and the result was a triangular cross-section. the same shape resulted from slicing the object perpendicular to its base. what three dimensional object fits this description?

A triangular pyramid would fit that description.

Answers4.) -1/205.) -1/406.) -55/127.) -3/4

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,