no 11&12 help me besok di kumpulin

1. 5 + 10 + 20 + 40 + 80 + 160 + 320 = 635 lembar
635 x 2000 = 1.270.000
Jawabanya C

2. p = 2l
keliling = 2(p + L)
=2(2L + L)
=6L

6L = 54
L = 9
P = 2 x 9 = 18
Luas = P x L = 18 x 9 = 162
Jawabanya A