Find the volume of a rectangular pipe, 1 m long if it's outer area of cross section is 4 cm × 3 cm , but it's internal area of cross section is 3.5 × 2.5 cm .
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Answer:
3.25cm^3
Step-by-step explanation:
volume of rectangular pipe = vol of external - vol of internal
vol = 4x3x1 - 3.5x2.5x1 (length x breadth x height)
vol = 12 - 8.75
vol = 3.25
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