Prisma tegak ABCD.EFGH beralaskan persegi panjang dengan AB=18 cm,Dan BC=10cm.bila AE=30cm luas seluruh permukaan prisma adlah
nathanieltanu
(18 x 10) x 2 + (10 x 30) x 2 + (18 x 30) x 2= 180 x 2 + 300 x 2 + 540 x 2 = 360 + 600 + 1080 = 2140
0 votes Thanks 0
Satsu99
Dik : AB(p) = 18 cm Dit : Luas pernukaan? BC(l) = 10 cm AE(t) = 30 cm Peny : Lp = 2 x {(pxl)+(pxt)+(lxt)} = 2 x {(18x10)+(18x30)+(10x30)} = 2 x (180+540+300) = 2 x 1020 = 2040 cm²
180 x 2 + 300 x 2 + 540 x 2 =
360 + 600 + 1080 =
2140
BC(l) = 10 cm
AE(t) = 30 cm
Peny : Lp = 2 x {(pxl)+(pxt)+(lxt)}
= 2 x {(18x10)+(18x30)+(10x30)}
= 2 x (180+540+300)
= 2 x 1020
= 2040 cm²