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Total surface area of a box = 2(LB+BH+LH)
Given dimensions 25cm x 10cm x 7.5cm
⇒Total Surface area = 2(250 + 75 + 187.5)
= 2(512.5)
= 1025 cm²
⇒Voulme of air inside = LxBxH
= 25x7.5x10
= 1875 cm³
Given dimensions 25cm x 10cm x 7.5cm
⇒Total Surface area = 2(250 + 75 + 187.5)
= 2(512.5)
= 1025 cm²
⇒Voulme of air inside = LxBxH
= 25x7.5x10
= 1875 cm³
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