Question

Mohon bantuannya pleasee
:))​

Answer 1

Jawaban:

B. 3840 cm³

Penjelasan dengan langkah-langkah:

p : l = 10 : 8

p/l = 10/8

p = 10/8 × l

Luas = p × l

320 = 10/8 × l × l

320 = 10/8 × l²

l² = 320 × 8/10

l² = 2560/10

l² = 256

l = √256

l = 16

Maka,

p = 10/8 × l

p = 10/8 × 16

p = 10 × 2

p = 20 cm

p : t = 5 : 3

p/t = 5/3

t = 20 × 3/5

t = 60/5

t = 12 cm

Volume

= p × l × t

= 20 cm × 16 cm × 12 cm

= 3840 cm³