Sebuah balok yang berukuran 12 cm x 10 cm x 8 cm. Jika masing-masing rusuknya diperbesar 3/2 kali, besar perubahan volume setelah diperbesar adalah ...
Adesartana
P = 12 × 3/2 = 12 × 3 = 36/2 = 18 l = 10 × 3/2 = 10 × 3 = 30/2 = 15 t = 8 × 3/2 = 8 × 3 = 24/2 = 12 V = (p×l) t = (18 × 15) 12 = 270 × 12 V = 3240 cm³
l = 10 × 3/2 = 10 × 3 = 30/2 = 15
t = 8 × 3/2 = 8 × 3 = 24/2 = 12
V = (p×l) t
= (18 × 15) 12
= 270 × 12
V = 3240 cm³