Jawabanmu

2014-06-04T17:24:39+07:00
Sisi Miring = √12²+5²
                = 13 cm
L.Sisi tgk = 10(5+12+13)
            = 300cm²
Lp= 2 Luas Alas + Luas Sisi Tegak
    = 2 . 1/2 . 5 . 12 + 300
    = 60 + 300
    = 360 cm²