tolong bantuin, besok harus sudah dikumpulkan:'(

1150 cm
maaf kalo salah

x = 10
p = 5x = 5.10 = 50
l = 3x+5 = 3.10 + 5 = 35
t = x+20 = 10+20 = 30

setiap 1 kerangka sarang burung berarti
4p + 4l + 4t
= 4.50 + 4.35 + 4.30
= 200 + 140 + 120
= 460

jadi, 3 kerangka 460 x 3 = 1380