Posted by **shane** on Tuesday, March 29, 2011 at 5:00pm.

Danish used 9 balls of clay and 16 straws to make a solid pyramid. How many faces does the solid have?

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**MathMate**, Tuesday, March 29, 2011 at 6:00pm
Each ball of clay is used to make a vertex (V of them).

Each straw is used to make an edge (E of them.)

Using Euler's formula, the number of faces is given by the formula:

V+F=E+2

Solve for F.

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**Anonymous**, Wednesday, February 29, 2012 at 7:45pm
N/a

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**zozo**, Tuesday, March 13, 2012 at 6:30pm
8 faces

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**Anonymous**, Wednesday, March 13, 2013 at 9:45pm
8 faces

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**j**, Tuesday, April 2, 2013 at 7:22pm
Denisha used 9 balls of clay and 16 straws to make a solid pyramid.how many faces does the solid have?

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**Melly**, Tuesday, March 11, 2014 at 6:50pm
8

faces

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