Question

ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!!!​

Answer 1

1) P = 6+9+12+18 = 45cм

2) P1 / P2 = k

k=45/30=3/2=1.5

3)a1 = a/k = 6/1.5  = 4(cм)

b1 = b/k=9/1.5=6cм

c1 = c/k = 12/1.5=8cм

d1 = d/k = 18/1.5=12cм