(1) The waist is larger than the bottom,

a+b+c=a+2b+2 1

b-a=3

Get，a = 5； b=c=8

(2) The bottom edge is larger than the waist,

a+b+c=a+2b+2 1

a-b=3

Combine the two formulas and get a = 9；; b=c=6

2. Let the number of edges of these two positive multiple deformations be n and m respectively.

n:m= 1:2

(n-2)× 180:(m-2)× 180 = 3:8

Combine these two formulas to get.

n=5，m = 8； The corresponding sum of internal angles is 540 and 1440 respectively.