nomer 2 a sama b bantu saya mengerjakan

2.a. Volume balok = 12 x 8 x 6
Volume = 576 cm³

Luas sisi = luas permukaan
= (12 x 8 x 2) + (12 x 6 x 2) + (8 x 6 x 2)
= 192 + 144 + 96
= 432 cm²

2.b. Volume balok = 15 x 12 x 8
Volume = 1440 cm³

Luas permukaan :
= (15 x 12 x 2) + (15 x 8 x 2) + (12 x 8 x 2)
= 360 + 240 + 192
= 792 cm²

2
a.
volume
=p*l*t
=12*8*6
=576cm^3

luas
=2 (pl+pt+lt)
=2* (96+72+48) cm^2
=2*216
=432cm^2

b.
volume
=p*l*t
=15*12*8
=1. 440cm^3

luas
=2 (pl+pt+lt)
=2* (180+120+96) cm^2
=2*396cm^2
=792cm^2

semoga bermanfaat +_+
jadikan jawaban terbaik ya....