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sunilgupta
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How many faces does the solid have? 27 Jul 2007, 05:26
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Q. How many faces does the solid have?

1) The solid has 10 edges.
2) The solid has 12 edges.



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BG
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How many faces does the solid have? 27 Jul 2007, 05:49
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Hi
I believe that A is correct
STMNT 1 tells us that the fiqure is a pyramid with base that has 5 edges and the solid has 6 sides
Stmnt 2 the figure can be a pyramid with 7 sides or a cube with 6 sides so stmnt 2 is insufficient
A
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sunilgupta
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How many faces does the solid have? 28 Jul 2007, 05:26
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BG
Hi
I believe that A is correct
STMNT 1 tells us that the fiqure is a pyramid with base that has 5 edges and the solid has 6 sides
Stmnt 2 the figure can be a pyramid with 7 sides or a cube with 6 sides so stmnt 2 is insufficient
A
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Do we have any formula for calculating this...
Eulers formula is there which is
No. of Faces + No. of Vertices = No. of Edges + 2...right...

This doesnt apply here but...

Sunil
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N750
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How many faces does the solid have? 28 Jul 2007, 06:12
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I guess it is E.......we need more information to solve this.
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Himalayan
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How many faces does the solid have? 28 Jul 2007, 09:00
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sunilgupta
BG
Hi
I believe that A is correct
STMNT 1 tells us that the fiqure is a pyramid with base that has 5 edges and the solid has 6 sides
Stmnt 2 the figure can be a pyramid with 7 sides or a cube with 6 sides so stmnt 2 is insufficient
A

Do we have any formula for calculating this...
Eulers formula is there which is
No. of Faces + No. of Vertices = No. of Edges + 2...right...

This doesnt apply here but...

Sunil
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A. BG has done it nicely.

its a solid: so there are n sides, total edges are 3n (if triangle) and 2n if pyramid.

1: since 10 is not divisible by 3, it should be a pyramid.
2: since 12 is divisible by 2 and 3, it could be either a pyramid or a 4 sided ractanle solid.

Nice question. I never thought this one but its a good learning in the morning.
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N750
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How many faces does the solid have? 28 Jul 2007, 23:29
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a cube is also solid so how does that fit in here.....
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How many faces does the solid have? 29 Jul 2007, 21:42
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sunilgupta
Q. How many faces does the solid have?

1) The solid has 10 edges.
2) The solid has 12 edges.
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intresting to know about the faces. agree with A.
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How many faces does the solid have? 30 Jul 2007, 05:54
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Straight up E.

A 'face' is not defined in geometry, only in graph theory.

Euler's relation: V - E + F = 2
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How many faces does the solid have? 01 Aug 2007, 21:34
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sunilgupta
Q. How many faces does the solid have?

1) The solid has 10 edges.
2) The solid has 12 edges.
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The problem does not specify whether the solid is regular or not. As it is written, the answer should be E.



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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