Use Euler's Formula to find the number of vertices in each polyhedron.

6 square faces

5 faces: 1 rectangle and 4 triangles

9 faces: 1 octagon and 8 triangles

Question

Use Euler's Formula to find the number of vertices in each polyhedron.

6 square faces

5 faces: 1 rectangle and 4 triangles

9 faces: 1 octagon and 8 triangles

anonymous · Answer

@Nnesha help?

anonymous · Answer

I think I have an idea on how to do this, but I am not too sure

amistre64 · Answer

if i read it right, you have some pyrimads

anonymous · Answer

I think so

amistre64 · Answer

vertex is a corner,  so add 1 to the number of base corners

anonymous · Answer

wouldn't I have to use the formula F + V = E + 2?

campbell_st · Answer

well the formula is 

Faces + Vertices = Edges + 2

or some variation on that 

6 square faces is a cube... so there are 8 vertices

the other shapes are 

2. a rectangular pyramid

3. an octagonal pyramid

hope it helps

amistre64 · Answer

|dw:1428961160119:dw|

anonymous · Answer

Oh ok!! Thank you!! I think I can take it on from here!!

amistre64 · Answer

you need the number of edges to work the formula .. but then youd have to draw the thing to start with and well, the defeats the purpose of using the formula to me

anonymous · Answer

I don't know who to give the medal to... I am sorry!!

anonymous · Answer

Thanks to the two of you though!

amistre64 · Answer

good luck