Jawabanmu

2014-05-30T13:56:23+07:00
2(30a² + 24a² + 20a²) = 33300
(30a² + 24a² + 20a²) = 16500
a = 15
panjang = 6a = 90
lebar = 5a = 75
tinggi = 4a = 60
terima kasih
pak saya mau tanya a=15 cra dpt ny gmana
(30a² + 24a² + 20a²) = 16500
74 a² = 16500
a² = 225
2014-05-30T13:58:53+07:00