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Lalas = 144cm2
t.limas = 8 cm
Dit:
L=....?
Peny:
Lalas=s²
144=s²
s=12 cm
Luas selubung = 4 x 6(seperdua sisi) x 1/2 x 8
Lselubung= 96cm2
L=Luas alas+Luas selubung
L= 144+96
L=240cm2