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13 votes
13 votes
The figure below is a right rectangular pyramid. Which of the following is not a cross-section from a right rectangular pyramid?

The figure below is a right rectangular pyramid. Which of the following is not a cross-example-1
User Hfter
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1 Answer

11 votes
11 votes

Answer:

(B)

Step-by-step explanation:

The base of a right rectangular pyramid is a rectangle, so if we cut the pyramid with a plane that is parallel to the base, we will get a cross-section with a rectangular form or (A)

We can also cut the pyramid with a plane that is perpendicular to the base, In this case, we will get a cross-section with a triangular form (C)

Finally, we can cut the pyramid with a transversal plane and get a cross-section with the form of a trapezoid (D)

Therefore, the answer is (B) because a square is not a cross-section for the right rectangular pyramid.

User Frankish
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