Jawabanmu

2014-04-10T20:10:44+07:00
Panjang: 5/5+2 x 21= 5/7 x21= 5x3= 15 cm

Lebar: 2/5+2 x 21=2/7 x 21= 2x3= 6 cm

Volume: P x L x T= 15 x 6 x 21=1890³

Maaf klw salah,, krn menurutku jwbannya kyak gini