Tolong dia jawab No 1 dan No 2 ya kak pakai cara Penting!!

1). x² +x² = (10√2)
         2x²= 100 ×2
               = 200
  x²    = 100
x = 10

L pm kbus = 10×10×6
                   = 600

V kbus = s³
               =10³ = 1000


2). 
p rusuk = 96 ÷ 12 = 8

L p kbus = 8×8×6
                 =384
V kbs = s³  = 8 ³  = 512


smg mbtu ya

1. A. luas permukaan kubus

6 × s2 = 6 × 10 × 10
= 600 cm2

B. volume kubus

s × s × s = 10 × 10 × 10 = 1000 cm3

2. A. 96/12 = 8

luas permukaan kubus

6 × s × s = 6 × 8 × 8 = 384 cm2

B. volume kubus

s × s × s = 8 × 8 × 8 = 512 cm3