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L alas = 112 cm
p = 14 cm
tinggi = 5 cm
maka :
L alas = px l
112 = 14 x l
l = 112/14
l = 8 cm
jadi Lus permukaan (Lp) adalah :
Lp = 2 x ( pxl + pxt + lxt)
= 2 x (14x8 + 14x5 + 8x5)
= 2 x (112 + 70 + 40)
= 2 x 222
= 444 cm³
= 112/14
= 8
luas permukaan
Lp = 2 (pxl + pxt + lxt)
= 2 ( 14x8 + 14x5 + 8x5)
= 2 ( 112 + 70 + 40)
= 2 ( 222)
= 444 cm²
jawabnnya 444 cm²