diketahui sebuh balok panjang 10 lebar 2 tinggi 4, carilah a. volume b.rusuk c.luas permukaan

A. V = P × l × T

= 10 × 2 × 4

= 80

B. R = (4 × p) + (4 × l) + (4 × t)

= (4 × 10) + (4 × 2) + (4 × 4)

= 40 + 8 + 16

= 64 (diakarkan pangkat 3)

= 4

C. L = 2 × (p×l + p×t + l×t)

= 2 × (10×2 + 10×4 + 2×4)

= 2 × (20 + 40 + 8)

= 2 × 68

= 136