Question

please solve it fast ​

Answer 1

Answer:

1)15

2)8

3)16

Step-by-step explanation:

Euler's formula = F+V-E =2

Therefore , First one is equal to 8+5-?=2

2) ?+6-12=2

3) 12+?-30 = 2

(or)

to find edges you need to add faces(F) , vertices(V) and 2 .

Answer 2

Answer:

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Step-by-step explanation:

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