Panjang rusuk kubus 15 cm. jika rusuk rusuknya diperbesar 1. 1/2 kali. maka perbandingan volume kubus sebelum dan sesudah diperbesar adalah.. tolong nya teman
ekamiaww
R sebelum = 15 cm r sesudah = 3/2 x 15 cm vol sblm : vol sesudah = (15)³ : (3/2 x 15)³ = (15)³ : [(27 / 8) x (15)³] = 1 : (27 / 8) = 8 : 27
r sesudah = 3/2 x 15 cm
vol sblm : vol sesudah = (15)³ : (3/2 x 15)³
= (15)³ : [(27 / 8) x (15)³]
= 1 : (27 / 8)
= 8 : 27
semoga membantu ya :)
=(15)*3/[(3^3/2^3)*15^3]
=1/(27/8)
=8/27