Jawabanmu

2014-04-09T21:27:10+07:00
Sisi alas 1 lagi :
√26² - 10²
= √676 - 100
= √576
= 24

LPP = 2×Luas Alas + Luas sisi tgak 1 + Luas sisi tegak 2 + Luas sisi tegak 3
960 = 2(a×t/2) + 10t + 24t + 26t
960 = 24 × 10 + 60t
960 = 240 + 60t
960 - 240 = 60t
720 = 60t
720/60 = t
12 = t

demikian mnurut saya
2 3 2
2014-04-09T21:39:55+07:00
26²-10²= panjang sisi satunya
=24(pake pythagoras)
960=10*24+24*tinggi+10*tinggi+26*tinggi
960=240+60x
720=60x
72=6x
12=x