Jawabanmu

2014-04-28T22:51:00+07:00
Volume= 1/3 x Luas alas x tinggi 1296 = 1/3 x Luas alas x 12 1296/4=luas alas √324 = luas alas rusuk = 18cm.
18x18= 324. 1/2 x 4 x 18 x 15 = 540. 540+324 =864cm persegi