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15 Oct 2020, 00:15
Kudos
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
49% (01:40) correct
51%
(01:42)
wrong
based on 104
sessions
History
Date
Time
Result
Not Attempted Yet
The figure above is a pyramid with four isosceles triangular faces and a base that is a regular pentagon. Points A, B, C,D and E (not shown) are the midpoints of the edges that are not in the plane of the base. Line segments are to be drawn on the triangular faces such that each segment connects two of these points. Which of the following is a representation of how these line segments could appear if viewed through the pentagonal base?
Attachment:
2.png [ 38.43 KiB | Viewed 2518 times ]
Attachment:
1.png [ 8.84 KiB | Viewed 2522 times ]
15 Oct 2020, 01:40
Kudos
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Bunuel
Explanation:
Figure B is the Right answer.
The pyramid is made by the face of isosceles triangles. so the base will be the same as a new figure which is joint by midpoints but will be smaller.
IMO-B
16 Oct 2020, 07:24
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Bunuel
It's not clear to me why the question describes only four of the five triangular faces (that just looks like a mistake, but I can't be sure). But more critically, the question asks "how these line segments could appear", but each picture seems to display not only those line segments, but also the base itself, which is not something the question asks for. So none of the answers is right.
Based on how I've understood the question, the answer seems to be B, since we'll just get a smaller-looking version of the pentagonal base if we connect the midpoints of the sloping edges. But since I barely understand what the question is saying, I wouldn't be surprised to learn that the question designer had something else in mind.
