Please Help!!!! I will give a medal and become a fan!!!

1. Use Euler's formula to find the missing number.
Vertices:13
Edges:26
Faces:? (1 point)

Question

Please Help!!!! I will give a medal and become a fan!!!

1. Use Euler's formula to find the missing number.
Vertices:13
Edges:26
Faces:? (1 point)

amistre64 · Answer

eulers formula is just basic addition ... whats the difficulty?

anonymous · Answer

I really need to get the right answer because i need to bring my grade up a lot

amistre64 · Answer

well, then you need to apply eulers formula.  and then we can see if you have the right answer.  This site is not a free answering service.

anonymous · Answer

16?

anonymous · Answer

@amistre64

amistre64 · Answer

hmm, first things first;  can you show me you know eulers formula?  if so then I can verify your results or correct it as needed

anonymous · Answer

$$e{ix} = \cos x + i \sin x$$

amistre64 · Answer

thats not going to be it

amistre64 · Answer

that is ONE of eulers things, but not quite the one we are looking for

amistre64 · Answer

lets try:

verts + faces = edges + 2

amistre64 · Answer

like i said, simple addition :)

13 + f = 26 + 2

f = 26+2-13

anonymous · Answer

15

amistre64 · Answer

15 is what i would go with yes.