find the area of the four walls ( in metre square ) of a cuboid 12 m long 64 CM broad and 3.5 m high
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Answer:
length=12m
width=64 cm=0.64m
height=3.5m
area=2lw+2wh+2hl
2×12×0.64+2×0.64×3.5+2×3.5×12
15.36+4.48+84
103.84 m^2
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