PLISSSSSS SAMA CARANYAAAAAAAA BUTUH GW EI

Jawab:

14. b

15. a

Penjelasan dengan langkah-langkah:

14.)

volume air

= 1/2 × volume akuarium

= 1/2 × (40 × 40 × 40)

= 1/2 × 64.000

= 32.000 cm³

= 32 liter

15.)

alas segitiga (a)

a² = 10² – 8²

    = 100 – 64

 a = √36

    = 6 cm

luas permukaan

= 2 × (L alas) + (K alas) ×t

= 2 × (1/2 × 6 × 8) + (6 + 8 + 10) × 20

= 2 × 24 + 24 × 20

= 48 + 480

= 528 cm²

good luck!