suatu akuarium berukuran p=60 cm l= 50 cm dan t=40 cm, hitunglah a. luas seluruh permukaan akuarium b. volumenya?​

L = 2 x ( p x l + p x t + l x t )

L = 2 x ( 60 x 50 + 60 x 40 + 50 x 40 )

L = 2 x ( 3.000 + 2.400 + 2.000 )

L = 2 x 7.400

L = 14.800 Cm²

_______________________________

V = p x l x t

V = 60 x 50 x 40

V = 3.000 x 40

V = 120.000 Cm³

Diket:

Balok

p = 60 cm

l = 50 cm

t = 40 cm

Ditanya: Lp & Vol?

Jawab:

Lp = 2 × ((p × l) + (p × t) + (l × t))

= 2 × ((60 × 50) + (60 × 40) + (50 × 40))

= 2 × (3.000 + 2.400 + 2.000)

= 2 × 7.400

= 14.800 cm²

v = p × l × t

= 60 × 50 × 40

= 3.000 × 40

= 120.000 cm³