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

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. 
N/a

8 faces

8 faces

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

8
faces