Jawabanmu

2014-04-27T18:44:39+07:00
L. alas = 6x cm . 5x cm 480 = 30x^2 cmpersegi 16 = x^2 cmpersegi x = 4 p = 6 x 4 = 24 cm l = 5 x 4 = 20 cm t = 4 x 4 = 16 cm L.p = 2(p.l) + 2(p.t) + 2(l.t) = 2(480) + 2(24.16) + 2(20.16) = 960 + 2.(384) + 2.(320) = 960 + 768 + 640 = 2368 cmpersegi . = kali ^ = pangkat ntar coba itung lagi abisnya aku gak pake kalkulator
2014-04-27T18:59:56+07:00
480=6yx5y <=>480=30y <=>16=y Lp=2x6yx5y+2x5yx4y+2x6yx4y =60y+40y+48y =148y =148(16) =2.368cm^2