Use euler's formula

2) vertices: 11
edges: 34
faces: ?
a: 25
b: 28
c: 26
d: 24

3: edges: 36
faces: 22
vertices: ?
a: 19
b: 15
c: 16
d: 17

4) faces: 12
vertices: 10
edges: ?
a: 23
b: 22
c: 25
d: 20

# 5 has a picture attached with the answer choices

if you can you maybe explain how to do one of them for me it would really me out a lot!

Part 2) Option A: 25

Part 3) Option C: 16

Part 4) Option D: 20

Part 5) pentagon

Step-by-step explanation:

we know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

so

Part 2) we have

vertices: 11

Edges: 34

Faces: ?

substitute the values in the formula and solve for F

Adds 23 both sides

Part 3) we have

Edges: 36

Faces: 22

Vertices: ?

substitute the values in the formula and solve for V

Adds 14 both sides

Part 4) we have

Faces: 12

Vertices: 10

Edges: ?

substitute the values in the formula and solve for E

Subtract 22 both sides

Multiply by -1 both sides

Part 5) we know that

The cross section of the figure is a plane figure with five straight sides and five angles

therefore

The figure is a pentagon

understand that i don't know the answers

will someone answer his question