mohon bantuanya dan beritahu cara nya nomor 2 dan 3

2. Pm = panjang model = 10cm
Panjang sebenarnya = 16m = 1600cm
Ls = lebar sebenarnya = 8m = 800cm
Ts = tinggi sebenarnya = 4m = 400cm

Pm/ps = lm/ls
10/1600 = lm/800
lm = 800x10/1600
= 5
Pm/ps = tm/ts
10/1600 = tm/400
tm = 400x10/1600
= 2,5 (B)

3. 20/50 = AC/25
AC = 25×10/50
= 10
20/50 = 12/12+x
12+x = 50×12/20
= 30 (C)

Semoga bermanfaat:)

maaf kalau salah......