V=81 000cm³
V=Ab *h
Ab=L*w
Ab=45*30 Ab=1350cm²
V=1350*h
1350*h=81 000
h=81 000/1 350 h=60cm answer variant b)
Volume = (length) x (width) x (height)
81,000 = (45) x (30) x (height)
Height = (81,000) / (45 x 30) = 60 cm
The height of the packing box is 60 centimeters, calculated using the volume formula for a rectangular prism. The formula is rearranged to isolate height after computing the base area. Therefore, the correct answer is option B. 60.
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